diff --git a/cypress/e2e/working area/design_functions.cy.js b/cypress/e2e/01_working_area/design_functions.cy.js
similarity index 100%
rename from cypress/e2e/working area/design_functions.cy.js
rename to cypress/e2e/01_working_area/design_functions.cy.js
diff --git a/cypress/e2e/working area/designs/dxf_laser_job.cy.js b/cypress/e2e/01_working_area/designs/dxf_laser_job.cy.js
similarity index 100%
rename from cypress/e2e/working area/designs/dxf_laser_job.cy.js
rename to cypress/e2e/01_working_area/designs/dxf_laser_job.cy.js
diff --git a/cypress/e2e/working area/designs/jpg_laser_job.cy.js b/cypress/e2e/01_working_area/designs/jpg_laser_job.cy.js
similarity index 100%
rename from cypress/e2e/working area/designs/jpg_laser_job.cy.js
rename to cypress/e2e/01_working_area/designs/jpg_laser_job.cy.js
diff --git a/cypress/e2e/working area/designs/png_laser_job.cy.js b/cypress/e2e/01_working_area/designs/png_laser_job.cy.js
similarity index 100%
rename from cypress/e2e/working area/designs/png_laser_job.cy.js
rename to cypress/e2e/01_working_area/designs/png_laser_job.cy.js
diff --git a/cypress/e2e/working area/designs/quick_text_laser_job.cy.js b/cypress/e2e/01_working_area/designs/quick_text_laser_job.cy.js
similarity index 100%
rename from cypress/e2e/working area/designs/quick_text_laser_job.cy.js
rename to cypress/e2e/01_working_area/designs/quick_text_laser_job.cy.js
diff --git a/cypress/e2e/working area/designs/shapes/circle_shape.cy.js b/cypress/e2e/01_working_area/designs/shapes/circle_shape.cy.js
similarity index 100%
rename from cypress/e2e/working area/designs/shapes/circle_shape.cy.js
rename to cypress/e2e/01_working_area/designs/shapes/circle_shape.cy.js
diff --git a/cypress/e2e/working area/designs/shapes/heart_shape.cy.js b/cypress/e2e/01_working_area/designs/shapes/heart_shape.cy.js
similarity index 100%
rename from cypress/e2e/working area/designs/shapes/heart_shape.cy.js
rename to cypress/e2e/01_working_area/designs/shapes/heart_shape.cy.js
diff --git a/cypress/e2e/working area/designs/shapes/line_shape.cy.js b/cypress/e2e/01_working_area/designs/shapes/line_shape.cy.js
similarity index 100%
rename from cypress/e2e/working area/designs/shapes/line_shape.cy.js
rename to cypress/e2e/01_working_area/designs/shapes/line_shape.cy.js
diff --git a/cypress/e2e/working area/designs/shapes/rectangle_shape.cy.js b/cypress/e2e/01_working_area/designs/shapes/rectangle_shape.cy.js
similarity index 100%
rename from cypress/e2e/working area/designs/shapes/rectangle_shape.cy.js
rename to cypress/e2e/01_working_area/designs/shapes/rectangle_shape.cy.js
diff --git a/cypress/e2e/working area/designs/shapes/star_shape.cy.js b/cypress/e2e/01_working_area/designs/shapes/star_shape.cy.js
similarity index 100%
rename from cypress/e2e/working area/designs/shapes/star_shape.cy.js
rename to cypress/e2e/01_working_area/designs/shapes/star_shape.cy.js
diff --git a/cypress/e2e/working area/designs/svg_laser_job.cy.js b/cypress/e2e/01_working_area/designs/svg_laser_job.cy.js
similarity index 100%
rename from cypress/e2e/working area/designs/svg_laser_job.cy.js
rename to cypress/e2e/01_working_area/designs/svg_laser_job.cy.js
diff --git a/cypress/e2e/working area/designs/text/filled_text.cy.js b/cypress/e2e/01_working_area/designs/text/filled_text.cy.js
similarity index 100%
rename from cypress/e2e/working area/designs/text/filled_text.cy.js
rename to cypress/e2e/01_working_area/designs/text/filled_text.cy.js
diff --git a/cypress/e2e/working area/designs/text/stroke_text.cy.js b/cypress/e2e/01_working_area/designs/text/stroke_text.cy.js
similarity index 100%
rename from cypress/e2e/working area/designs/text/stroke_text.cy.js
rename to cypress/e2e/01_working_area/designs/text/stroke_text.cy.js
diff --git a/cypress/e2e/working area/left_side.cy.js b/cypress/e2e/01_working_area/left_side.cy.js
similarity index 100%
rename from cypress/e2e/working area/left_side.cy.js
rename to cypress/e2e/01_working_area/left_side.cy.js
diff --git a/cypress/e2e/working area/right_side.cy.js b/cypress/e2e/01_working_area/right_side.cy.js
similarity index 100%
rename from cypress/e2e/working area/right_side.cy.js
rename to cypress/e2e/01_working_area/right_side.cy.js
diff --git a/cypress/e2e/working area/settings/cut_engrave.cy.js b/cypress/e2e/01_working_area/settings/cut_engrave.cy.js
similarity index 100%
rename from cypress/e2e/working area/settings/cut_engrave.cy.js
rename to cypress/e2e/01_working_area/settings/cut_engrave.cy.js
diff --git a/cypress/e2e/working area/settings/cut_skip_another.cy.js b/cypress/e2e/01_working_area/settings/cut_skip_another.cy.js
similarity index 100%
rename from cypress/e2e/working area/settings/cut_skip_another.cy.js
rename to cypress/e2e/01_working_area/settings/cut_skip_another.cy.js
diff --git a/cypress/e2e/working area/settings/material_selection.cy.js b/cypress/e2e/01_working_area/settings/material_selection.cy.js
similarity index 100%
rename from cypress/e2e/working area/settings/material_selection.cy.js
rename to cypress/e2e/01_working_area/settings/material_selection.cy.js
diff --git a/cypress/e2e/settings/maintenance.cy.js b/cypress/e2e/settings/maintenance.cy.js
index 62e55f1f5..2a504e620 100644
--- a/cypress/e2e/settings/maintenance.cy.js
+++ b/cypress/e2e/settings/maintenance.cy.js
@@ -37,6 +37,13 @@ describe("Maintenance", function () {
                     expect(resp.status).to.eq(200);
                 });
             });
+        cy.get('[data-test="maintenance-links-buy-now-heavy-duty-pre-filter"]')
+            .invoke("attr", "href")
+            .then((myLink) => {
+                cy.request(myLink).then((resp) => {
+                    expect(resp.status).to.eq(200);
+                });
+            });
     });
     // status code no exist
     it("Air Filter: Main-filter", function () {
diff --git a/octoprint_mrbeam/analytics/usage_handler.py b/octoprint_mrbeam/analytics/usage_handler.py
index a1c45607f..eb614bc97 100644
--- a/octoprint_mrbeam/analytics/usage_handler.py
+++ b/octoprint_mrbeam/analytics/usage_handler.py
@@ -979,11 +979,9 @@ def _calculate_af3_filter_usage(self, filter_stage):
             logger = self._logger
 
         # get the global values
-        pressure_loss = usage_data.get(
-            self.PRESSURE_KEY, AirFilter.MAX_PRESSURE_DIFFERENCE
-        )
+        pressure_loss = usage_data.get(self.PRESSURE_KEY, 0)
         rpm_filter_test = self._get_airfilter_carbon_filter_usage_data().get(
-            self.FAN_TEST_RPM_KEY, AirFilter.MAX_FAN_TEST_RPM
+            self.FAN_TEST_RPM_KEY, 0
         )  # this is saved in carbon filter stage
 
         # calculate the percentages
diff --git a/octoprint_mrbeam/iobeam/airfilter.py b/octoprint_mrbeam/iobeam/airfilter.py
index bada656a7..3b1a6c601 100644
--- a/octoprint_mrbeam/iobeam/airfilter.py
+++ b/octoprint_mrbeam/iobeam/airfilter.py
@@ -7,6 +7,7 @@
 from flask_babel import gettext
 
 from octoprint_mrbeam.iobeam.iobeam_handler import IoBeamEvents
+from octoprint_mrbeam.model.iobeam import exhaust
 
 from octoprint_mrbeam.mrbeam_events import MrBeamEvents
 from octoprint_mrbeam.mrb_logger import mrb_logger
@@ -50,8 +51,7 @@ class AirFilter(object):
     FILTERSTAGES = [PREFILTER, CARBONFILTER]
 
     PRESSURE_VALUES_LIST_SIZE = 5
-    MAX_PRESSURE_DIFFERENCE = 1880
-    MAX_FAN_TEST_RPM = 10750
+
     AF3_MAX_PREFILTER_PRESSURE_CHANGE = (
         100  # The maximum pressure change in Pa for the prefilter of the AF3
     )
@@ -69,7 +69,7 @@ class AirFilter(object):
         (950, 40),
         (1150, 60),
         (1500, 80),
-        (MAX_PRESSURE_DIFFERENCE, 100),
+        (1880, 100),
     ]
     AF3_PRESSURE_GRAPH_PREFILTER = [
         (100, 0),
@@ -83,7 +83,7 @@ class AirFilter(object):
         (9860, 0),
         (9900, 20),
         (10200, 70),
-        (MAX_FAN_TEST_RPM, 100),
+        (10750, 100),
     ]
 
     class ProfileParameters(Enum):
@@ -128,8 +128,33 @@ def __init__(self, plugin):
         self._connected = None
         self._last_pressure_values = deque(maxlen=self.PRESSURE_VALUES_LIST_SIZE)
         self._profile = None
+        self._external_power = None
+        self._iobeam = None
 
         self._load_current_profile()
+        self._event_bus.subscribe(
+            MrBeamEvents.MRB_PLUGIN_INITIALIZED, self._on_mrbeam_plugin_initialized
+        )
+
+    def reset_data(self):
+        """Resets all data of the air filter."""
+        self._serial = None
+        self._model_id = None
+        self._pressure1 = None
+        self._pressure2 = None
+        self._pressure3 = None
+        self._pressure4 = None
+        self._temperature1 = None
+        self._temperature2 = None
+        self._temperature3 = None
+        self._temperature4 = None
+        self._profile = None
+        self._connected = None
+        self._last_pressure_values = deque(maxlen=self.PRESSURE_VALUES_LIST_SIZE)
+        self._external_power = None
+
+    def _on_mrbeam_plugin_initialized(self, event, payload):
+        self._iobeam = self._plugin.iobeam
 
     @property
     def model(self):
@@ -223,7 +248,10 @@ def set_airfilter(self, model_id, serial):
 
     def _airfilter_changed(self):
         self._plugin.send_mrb_state()
-        self._event_bus.fire(MrBeamEvents.AIRFILTER_CHANGED)
+        self._event_bus.fire(
+            MrBeamEvents.AIRFILTER_CHANGED,
+            {"model_id": self._model_id, "serial": self.serial},
+        )
 
     def set_pressure(
         self,
@@ -260,6 +288,29 @@ def set_pressure(
         elif self._pressure1 is not None and self.model_id in self.AIRFILTER2_MODELS:
             self._last_pressure_values.append(self._pressure1)
 
+    def set_device(self, device):
+        """
+        Sets the device data of the air filter.
+
+        Args:
+            device (exhaust.Device):
+
+        Returns:
+            None
+        """
+        if (
+            self._external_power != device.ext_power
+            and device.ext_power
+            and device.serial_num == 0
+        ):
+            self._logger.info(
+                "Exhaust fan is now connected to external power -> reset exhaust"
+            )
+            self._iobeam.reset_exhaust()
+            return None
+        else:
+            self._external_power = device.ext_power
+
     def _get_avg_pressure_differences(self):
         """Returns the average pressure differences of the last pressure readings.
 
@@ -296,7 +347,7 @@ def pressure_drop_mainfilter(self):
         Returns:
             int: Pressure drop of the main filter
         """
-        if self.model_id in self.AIRFILTER3_MODELS:
+        if self.is_airfilter3():
             (
                 _,
                 mainfilter_pressure_avg,
@@ -306,8 +357,17 @@ def pressure_drop_mainfilter(self):
             return mainfilter_pressure_avg - fan_pressure_avg
         return None
 
+    def is_airfilter3(self):
+        """
+        Return True if the current air filter is an air filter 3
+
+        Returns:
+            bool: True if the current air filter is an air filter 3
+        """
+        return self.model_id in self.AIRFILTER3_MODELS
+
     def exhaust_hose_is_blocked(self):
-        if self.model_id in self.AIRFILTER3_MODELS:
+        if self.is_airfilter3():
             return self._pressure2 < self.AF3_PRESSURE2_MIN
         return None
 
@@ -318,7 +378,7 @@ def pressure_drop_prefilter(self):
         Returns:
                 int: Pressure drop of the prefilter
         """
-        if self.model_id in self.AIRFILTER3_MODELS:
+        if self.is_airfilter3():
             (
                 prefilter_pressure_avg,
                 mainfilter_pressure_avg,
@@ -330,6 +390,8 @@ def pressure_drop_prefilter(self):
 
     @property
     def connected(self):
+        if self.is_airfilter3() and not self._external_power:
+            return False
         return self._connected
 
     @connected.setter
@@ -346,7 +408,10 @@ def connected(self, connected):
         if self._connected != connected:
             self._connected = connected
             if connected:
-                self._event_bus.fire(IoBeamEvents.FAN_CONNECTED)
+                self._event_bus.fire(
+                    IoBeamEvents.FAN_CONNECTED,
+                    {"serial": self.serial, "model_id": self.model_id},
+                )
                 # If the fan gets marked as connected but we don't have a serial number or model id
                 # Then the af used is a non smart => AF1 or single
                 if self.serial is None and self.model_id is None:
@@ -361,7 +426,10 @@ def connected(self, connected):
                     )
                     self._connected = connected  # need to set it here again as the set_airfilter resets it
             else:
-                self._event_bus.fire(IoBeamEvents.FAN_DISCONNECTED)
+                self._event_bus.fire(
+                    IoBeamEvents.FAN_DISCONNECTED,
+                    {"serial": self.serial, "model_id": self.model_id},
+                )
 
     def set_temperatures(
         self,
@@ -387,22 +455,6 @@ def set_temperatures(
         if temperature4 is not None:
             self._temperature4 = temperature4
 
-    def reset_data(self):
-        """Resets all data of the air filter."""
-        self._serial = None
-        self._model_id = None
-        self._pressure1 = None
-        self._pressure2 = None
-        self._pressure3 = None
-        self._pressure4 = None
-        self._temperature1 = None
-        self._temperature2 = None
-        self._temperature3 = None
-        self._temperature4 = None
-        self._profile = None
-        self._connected = None
-        self._last_pressure_values = deque(maxlen=self.PRESSURE_VALUES_LIST_SIZE)
-
     def _load_current_profile(self):
         """Loads the current profile of the air filter and safes it in self._profile.
 
diff --git a/octoprint_mrbeam/iobeam/iobeam_handler.py b/octoprint_mrbeam/iobeam/iobeam_handler.py
index 50ad61668..2e730d8c4 100644
--- a/octoprint_mrbeam/iobeam/iobeam_handler.py
+++ b/octoprint_mrbeam/iobeam/iobeam_handler.py
@@ -15,6 +15,7 @@
     HwMalfunction,
     HwMalfunctionHandler,
 )
+from octoprint_mrbeam.model.iobeam import exhaust
 from octoprint_mrbeam.mrb_logger import mrb_logger
 from octoprint_mrbeam.lib.rwlock import RWLock
 from flask.ext.babel import gettext
@@ -140,6 +141,7 @@ class IoBeamHandler(object):
     MESSAGE_ACTION_FAN_TYPE = "type"
     MESSAGE_ACTION_FAN_EXHAUST = "exhaust"
     MESSAGE_ACTION_FAN_LINK_QUALITY = "link_quality"
+    MESSAGE_ACTION_EXHAUST_RESET = "reset"
     MESSAGE_ACTION_COMPRESSOR_ON = "on"
 
     # Possible datasets
@@ -232,6 +234,12 @@ def shutdown(self, *args):
     def shutdown_fan(self):
         self.send_fan_command(self.MESSAGE_ACTION_FAN_OFF)
 
+    def reset_exhaust(self):
+        """
+        Reset the exhaust fan.
+        """
+        self.send_fan_command(self.MESSAGE_ACTION_EXHAUST_RESET)
+
     def is_interlock_closed(self):
         return len(self._interlocks.keys()) == 0
 
@@ -1107,12 +1115,12 @@ def _handle_exhaust(self, dataset):
         :param dataset:
         :return: error count
         """
-        device_dataset = dataset.get("device", {})
+        device_dataset = exhaust.Device.from_dict(dataset.get("device", {}))
         pressure_dataset = dataset.get("pressure", {})
         temperature_dataset = dataset.get("temperature", {})
         if (
-            device_dataset.get("serial_num") is None
-            and device_dataset.get("type") is None
+            device_dataset.serial_num is None
+            and device_dataset.type is None
             and "error" in pressure_dataset
             and "error" in temperature_dataset
         ):
@@ -1122,9 +1130,10 @@ def _handle_exhaust(self, dataset):
             self._airfilter.set_airfilter(serial=self.UNKNOWN_SERIAL_KEY, model_id=1)
         else:
             self._airfilter.set_airfilter(
-                serial=device_dataset.get("serial_num"),
-                model_id=device_dataset.get("type"),
+                serial=device_dataset.serial_num,
+                model_id=device_dataset.type,
             )
+            self._airfilter.set_device(device_dataset)
         self._airfilter.set_pressure(
             pressure1=pressure_dataset.get("pressure1"),
             pressure2=pressure_dataset.get("pressure2"),
@@ -1138,10 +1147,10 @@ def _handle_exhaust(self, dataset):
             temperature4=temperature_dataset.get("temp4"),
         )
         # get the pressure sensor reading this will come as dust with the current iobeam version
-        if "pressure" in device_dataset:
-            self._airfilter.set_pressure(pressure=device_dataset.get("pressure"))
+        if device_dataset:
+            self._airfilter.set_pressure(pressure=device_dataset.pressure)
             vals = {
-                "pressure": device_dataset.get("pressure"),
+                "pressure": device_dataset.pressure,
             }
             self._call_callback(IoBeamValueEvents.EXHAUST_DYNAMIC_VALUE, dataset, vals)
         return 0
diff --git a/octoprint_mrbeam/model/iobeam/__init__.py b/octoprint_mrbeam/model/iobeam/__init__.py
new file mode 100644
index 000000000..e69de29bb
diff --git a/octoprint_mrbeam/model/iobeam/exhaust.py b/octoprint_mrbeam/model/iobeam/exhaust.py
new file mode 100644
index 000000000..357ccc092
--- /dev/null
+++ b/octoprint_mrbeam/model/iobeam/exhaust.py
@@ -0,0 +1,67 @@
+class ExhaustModelInitializationError(Exception):
+    pass
+
+
+class Device:
+    # FOR PYTHON3
+    # dataset_type: int
+    # ext_power: bool
+    # ext_voltage: float
+    # fan_power: float
+    # mode: str
+    # pressure: int
+    # serial_num: int
+    # smart_lock: bool
+    # type: int
+
+    def __init__(
+        self,
+        dataset_type,
+        ext_power,
+        ext_voltage,
+        fan_power,
+        mode,
+        pressure,
+        serial_num,
+        smart_lock,
+        type,
+    ):
+        self.dataset_type = dataset_type
+        self.ext_power = ext_power
+        self.ext_voltage = ext_voltage
+        self.fan_power = fan_power
+        self.mode = mode
+        self.pressure = pressure
+        self.serial_num = serial_num
+        self.smart_lock = smart_lock
+        self.type = type
+
+    @staticmethod
+    # FOR PYTHON3
+    # def from_dict(dictonary: dict) -> Device:
+    def from_dict(dictonary):
+        """
+        Creates a Device object from a dict.
+
+        Args:
+            dictonary (dict): dict with the device data
+
+        Returns:
+            Device: Device object
+        """
+        try:
+            return Device(
+                dictonary.get("dataset_type"),
+                dictonary.get("ext_power"),
+                dictonary.get("ext_voltage"),
+                dictonary.get("fan_power"),
+                dictonary.get("mode"),
+                dictonary.get("pressure"),
+                dictonary.get("serial_num"),
+                dictonary.get("smart_lock"),
+                dictonary.get("type"),
+            )
+        except TypeError as e:
+            raise ExhaustModelInitializationError(
+                "Can't init device from dict: {} - e:{}".format(dictonary, e)
+            )
diff --git a/octoprint_mrbeam/static/img/air_filter/af3-mainfilter.png b/octoprint_mrbeam/static/img/air_filter/af3-mainfilter.png
index 5978def28..32716f20b 100644
Binary files a/octoprint_mrbeam/static/img/air_filter/af3-mainfilter.png and b/octoprint_mrbeam/static/img/air_filter/af3-mainfilter.png differ
diff --git a/octoprint_mrbeam/static/js/app/view-models/modal/ready-to-laser.js b/octoprint_mrbeam/static/js/app/view-models/modal/ready-to-laser.js
index 39003ff23..886a69aca 100644
--- a/octoprint_mrbeam/static/js/app/view-models/modal/ready-to-laser.js
+++ b/octoprint_mrbeam/static/js/app/view-models/modal/ready-to-laser.js
@@ -312,6 +312,8 @@ $(function () {
                 if ("fan_connected" in mrb_state) {
                     if (mrb_state["fan_connected"] !== null) {
                         self.is_fan_connected(mrb_state["fan_connected"]);
+                    } else {
+                        self.is_fan_connected(false);
                     }
                 }
                 if ("rtl_mode" in mrb_state) {
diff --git a/octoprint_mrbeam/static/js/app/view-models/settings/about.js b/octoprint_mrbeam/static/js/app/view-models/settings/about.js
index f9674eb37..e2b19234a 100644
--- a/octoprint_mrbeam/static/js/app/view-models/settings/about.js
+++ b/octoprint_mrbeam/static/js/app/view-models/settings/about.js
@@ -11,7 +11,6 @@ $(function () {
         let self = this;
         window.mrbeam.viewModels["aboutSettingsViewModel"] = self;
         self.mrb_state = params[0];
-        self.airfilter_serial = self.mrb_state.airfilter_serial;
         self.airfilter_model = self.mrb_state.airfilter_model;
     }
 
diff --git a/octoprint_mrbeam/templates/calibration/user/view_corner_calibration.jinja2 b/octoprint_mrbeam/templates/calibration/user/view_corner_calibration.jinja2
index dc40eec17..48ff1c426 100644
--- a/octoprint_mrbeam/templates/calibration/user/view_corner_calibration.jinja2
+++ b/octoprint_mrbeam/templates/calibration/user/view_corner_calibration.jinja2
@@ -34,7 +34,7 @@
                 {{ _('Please perform a homing cycle first') }}
             </span>
         </li>
-        <li>{{ _('Wait until the engraving is finished and Mr Beam Status Lights are green. Open the safety lid again and be carefult NOT to touch the engraved material. The camera will now take a picture of the engraving.') }}</li>
+        <li>{{ _('Wait until the engraving is finished and Mr Beam Status Lights are green. Open the safety lid again and be careful NOT to touch the engraved material. The camera will now take a picture of the engraving.') }}</li>
         <li>{{ _('Start the calibration by clicking on the button, and then follow these steps:') }}
             <ul>
                 <li>{{ _('Click on the arrow head of the marker in the magnified picture.') }}</li>
diff --git a/octoprint_mrbeam/templates/settings/about_settings.jinja2 b/octoprint_mrbeam/templates/settings/about_settings.jinja2
index 54e2c0e05..a69386f69 100644
--- a/octoprint_mrbeam/templates/settings/about_settings.jinja2
+++ b/octoprint_mrbeam/templates/settings/about_settings.jinja2
@@ -24,11 +24,9 @@
                         </ul>
                         </div>
                     {% endif %}
-                    <div data-bind="visible: airfilter_serial() != undefined || (airfilter_model() != undefined && airfilter_model() != 'Unknown')">
+                    <div data-bind="visible: (airfilter_model() != undefined && airfilter_model() != 'Unknown')">
                         <strong>{{ _('Air Filter System') }}:</strong>
                         <ul class="list-unstyled">
-                            <li data-bind="visible: airfilter_serial()"><strong>{{ _('Serial number') }}:</strong> <span
-                                    data-bind="text: airfilter_serial()"></span></li>
                             <li data-bind="visible: airfilter_model() != undefined && airfilter_model() != 'Unknown'">
                                 <strong>{{ _('Model') }}:</strong> <span data-bind="text: airfilter_model()"></span>
                             </li>
diff --git a/octoprint_mrbeam/templates/settings/maintenance_settings.jinja2 b/octoprint_mrbeam/templates/settings/maintenance_settings.jinja2
index 809eb595f..b62903d7c 100644
--- a/octoprint_mrbeam/templates/settings/maintenance_settings.jinja2
+++ b/octoprint_mrbeam/templates/settings/maintenance_settings.jinja2
@@ -16,7 +16,7 @@
                     </div>
                     <div class="maintenance-links" data-bind="visible: shopifyLink('prefilter', 0)">
                         <a data-bind="attr: {href: shopifyLink('prefilter', 0)}"
-                           target="_blank" id="prefilter_shop_link" data-test="maintenance-links-buy-now-pre-filter" class="maintenance-link-shop">
+                           target="_blank" id="prefilter_shop_link" data-test="maintenance-links-buy-new-pre-filter-af3" class="maintenance-link-shop">
                             <i class="icon-shopping-cart"></i>
                             {{ _('Buy now') }}
                         </a>
@@ -45,7 +45,7 @@
                     </div>
                     <div class="maintenance-links" data-bind="visible: shopifyLink('carbonfilter', 0)">
                         <a data-bind="attr: {href: shopifyLink('carbonfilter', 0)}"
-                           target="_blank" id="carbon_filter_shop_link" class="maintenance-link-shop">
+                           target="_blank" id="carbon_filter_shop_link" data-test="maintenance-links-buy-now-main-filter-af3" class="maintenance-link-shop">
                             <i class="icon-shopping-cart"></i>
                             {{ _('Buy now') }}
                         </a>
@@ -101,7 +101,7 @@
                                 </small>
                                 <div class="maintenance-links" data-bind="visible: shopifyLink('prefilter_heavy_duty', 0)">
                                     <a data-bind="attr: {href: shopifyLink('prefilter_heavy_duty', 0)}"
-                                       target="_blank" id="prefilter_shop_link" data-test="maintenance-links-buy-now-pre-filter" class="maintenance-link-shop">
+                                       target="_blank" id="prefilter_shop_link" data-test="maintenance-links-buy-now-heavy-duty-pre-filter" class="maintenance-link-shop">
                                         <i class="icon-shopping-cart"></i>
                                         {{ _('Buy now') }}
                                     </a>
diff --git a/octoprint_mrbeam/translations/de/LC_MESSAGES/messages.mo b/octoprint_mrbeam/translations/de/LC_MESSAGES/messages.mo
index 4bbce080e..6bf291320 100644
Binary files a/octoprint_mrbeam/translations/de/LC_MESSAGES/messages.mo and b/octoprint_mrbeam/translations/de/LC_MESSAGES/messages.mo differ
diff --git a/octoprint_mrbeam/translations/de/LC_MESSAGES/messages.po b/octoprint_mrbeam/translations/de/LC_MESSAGES/messages.po
index 25fb96b2c..04dc2a144 100644
--- a/octoprint_mrbeam/translations/de/LC_MESSAGES/messages.po
+++ b/octoprint_mrbeam/translations/de/LC_MESSAGES/messages.po
@@ -7,8 +7,8 @@ msgid ""
 msgstr ""
 "Project-Id-Version: Mr_Beam 0.1.61\n"
 "Report-Msgid-Bugs-To: EMAIL@ADDRESS\n"
-"POT-Creation-Date: 2023-08-16 11:15+0200\n"
-"PO-Revision-Date: 2023-08-16 15:14+0200\n"
+"POT-Creation-Date: 2023-10-19 12:12+0200\n"
+"PO-Revision-Date: 2023-10-19 12:13+0200\n"
 "Last-Translator: Andy Werner <andy@mr-beam.org>\n"
 "Language-Team: \n"
 "Language: de\n"
@@ -17,63 +17,63 @@ msgstr ""
 "Content-Transfer-Encoding: 8bit\n"
 "X-Generator: Poedit 3.2.2\n"
 
-#: octoprint_mrbeam/__init__.py:974
+#: octoprint_mrbeam/__init__.py:1042
 #: octoprint_mrbeam/static/js/app/view-models/mother.js:731
 #: octoprint_mrbeam/static/js/app/view-models/mother.js:742
 #: octoprint_mrbeam/templates/settings/file_settings.jinja2:2
 msgid "Files"
 msgstr "Dateien"
 
-#: octoprint_mrbeam/__init__.py:981
+#: octoprint_mrbeam/__init__.py:1049
 #: octoprint_mrbeam/templates/settings/camera_settings.jinja2:4
 msgid "Camera"
 msgstr "Kamera"
 
-#: octoprint_mrbeam/__init__.py:988
+#: octoprint_mrbeam/__init__.py:1056
 #: octoprint_mrbeam/templates/settings/backlash_settings.jinja2:2
 msgid "Precision Calibration"
 msgstr "Feinjustierung"
 
-#: octoprint_mrbeam/__init__.py:995
+#: octoprint_mrbeam/__init__.py:1063
 #: octoprint_mrbeam/templates/calibration/watterott/calibration_tool.jinja2:56
 #: octoprint_mrbeam/templates/settings/debug_settings.jinja2:5
 msgid "Debug"
 msgstr "Debug"
 
-#: octoprint_mrbeam/__init__.py:1002
+#: octoprint_mrbeam/__init__.py:1070
 #: octoprint_mrbeam/templates/settings/about_settings.jinja2:2
 msgid "About This Mr Beam"
 msgstr "Über diesen Mr Beam"
 
-#: octoprint_mrbeam/__init__.py:1009
+#: octoprint_mrbeam/__init__.py:1077
 msgid "Better Together"
 msgstr "Gemeinsam Vorankommen"
 
-#: octoprint_mrbeam/__init__.py:1016
+#: octoprint_mrbeam/__init__.py:1084
 #: octoprint_mrbeam/templates/settings/reminders_settings.jinja2:2
 msgid "Reminders"
 msgstr "Erinnerungen"
 
-#: octoprint_mrbeam/__init__.py:1023
+#: octoprint_mrbeam/__init__.py:1091
 #: octoprint_mrbeam/templates/settings/maintenance_settings.jinja2:2
 msgid "Maintenance"
 msgstr "Wartung"
 
-#: octoprint_mrbeam/__init__.py:1030
+#: octoprint_mrbeam/__init__.py:1098
 #: octoprint_mrbeam/templates/settings/leds_settings.jinja2:2
 msgid "Mr Beam Lights"
 msgstr "Mr Beam Lights"
 
-#: octoprint_mrbeam/__init__.py:1037
+#: octoprint_mrbeam/__init__.py:1105
 #: octoprint_mrbeam/templates/settings/custom_material_settings.jinja2:2
 msgid "Custom Material Settings"
 msgstr "Benutzerdefinierte Materialeinstellungen"
 
-#: octoprint_mrbeam/__init__.py:2456
+#: octoprint_mrbeam/__init__.py:2537
 msgid "A new picture is being taken, please wait a little..."
 msgstr "Es wird ein neues Bild gemacht, bitte warte einen Moment..."
 
-#: octoprint_mrbeam/__init__.py:2461
+#: octoprint_mrbeam/__init__.py:2542
 msgid "Either the camera is busy or the lid is not open."
 msgstr ""
 "Entweder ist die Kamera nicht erreichbar oder der Deckel ist nicht geöffnet."
@@ -122,6 +122,11 @@ msgstr "Automatisches GCode-Löschen"
 msgid "...and more!"
 msgstr "...und mehr!"
 
+# don’t change the link
+#: octoprint_mrbeam/iobeam/airfilter.py:652
+msgid "https://www.mr-beam.org/en/"
+msgstr "https://www.mr-beam.org/"
+
 #: octoprint_mrbeam/printing/comm_acc2.py:428
 #: octoprint_mrbeam/printing/comm_acc2.py:487
 msgid "Please contact Mr Beam support team and attach octoprint.log."
@@ -310,7 +315,7 @@ msgid "Unable to start conversion because a parameter is missing."
 msgstr ""
 "Die Konvertierung konnte nicht gestartet werden, da ein Parameter fehlt."
 
-#: octoprint_mrbeam/static/js/app/view-models/convert.js:2193
+#: octoprint_mrbeam/static/js/app/view-models/convert.js:2194
 msgid ""
 "To free up some disk space you may want to perform one or all of the "
 "following suggestions:"
@@ -318,7 +323,7 @@ msgstr ""
 "Um etwas Speicherplatz freizugeben, könntest Du einen oder alle der "
 "folgenden Vorschläge ausführen:"
 
-#: octoprint_mrbeam/static/js/app/view-models/convert.js:2199
+#: octoprint_mrbeam/static/js/app/view-models/convert.js:2200
 msgid ""
 "Delete GCode files: Go to design library and click 'Only show GCode files' "
 "on the left. Here you can delete files from the according context menu."
@@ -327,7 +332,7 @@ msgstr ""
 "„Nur GCode-Dateien anzeigen“. Hier kannst Du Dateien über das entsprechende "
 "Kontextmenü löschen."
 
-#: octoprint_mrbeam/static/js/app/view-models/convert.js:2205
+#: octoprint_mrbeam/static/js/app/view-models/convert.js:2206
 msgid ""
 "Delete design files: Go to design library and click 'Only show design files' "
 "on the left. Here you can delete files from the according context menu."
@@ -336,7 +341,7 @@ msgstr ""
 "\"Nur Designdateien anzeigen'. Hier kannst Du Dateien aus dem entsprechenden "
 "Kontextmenü löschen."
 
-#: octoprint_mrbeam/static/js/app/view-models/convert.js:2211
+#: octoprint_mrbeam/static/js/app/view-models/convert.js:2212
 msgid ""
 "Delete log files: Go to Settings -> logs and delete old log files per click "
 "on the trash bin icon."
@@ -344,16 +349,16 @@ msgstr ""
 "Löschen von log-Dateien: Gehe zu Einstellungen -> logs und lösche alte log-"
 "Dateien, indem Du auf das Papierkorbsymbol klickst."
 
-#: octoprint_mrbeam/static/js/app/view-models/convert.js:2217
+#: octoprint_mrbeam/static/js/app/view-models/convert.js:2218
 #, python-format
 msgid "Find more details %(open)sonline%(close)s."
 msgstr "Mehr Details findest Du %(open)sonline%(close)s."
 
-#: octoprint_mrbeam/static/js/app/view-models/convert.js:2224
+#: octoprint_mrbeam/static/js/app/view-models/convert.js:2225
 msgid "Get more free disk space"
 msgstr "Mehr Disk-Speicherplatz frei machen"
 
-#: octoprint_mrbeam/static/js/app/view-models/convert.js:2497
+#: octoprint_mrbeam/static/js/app/view-models/convert.js:2498
 #: octoprint_mrbeam/templates/conversion_dialog.jinja2:515
 msgid "Cut "
 msgstr "Schneiden "
@@ -385,7 +390,7 @@ msgid "Do you still want to cancel?"
 msgstr "Willst du immer noch abbrechen?"
 
 #: octoprint_mrbeam/static/js/app/view-models/mother.js:64
-#: octoprint_mrbeam/templates/settings/maintenance_settings.jinja2:168
+#: octoprint_mrbeam/templates/settings/maintenance_settings.jinja2:225
 msgid "No"
 msgstr "Nein"
 
@@ -395,7 +400,7 @@ msgstr "Nein"
 #: octoprint_mrbeam/templates/calibration/watterott/tab_camera_alignment.jinja2:42
 #: octoprint_mrbeam/templates/calibration/watterott/tab_corner_calibration.jinja2:71
 #: octoprint_mrbeam/templates/calibration/watterott/tab_lens_calibration.jinja2:110
-#: octoprint_mrbeam/templates/settings/maintenance_settings.jinja2:169
+#: octoprint_mrbeam/templates/settings/maintenance_settings.jinja2:226
 msgid "Yes"
 msgstr "Ja"
 
@@ -475,42 +480,42 @@ msgstr ""
 msgid "Please confirm to proceed."
 msgstr "Bitte bestätige, um fortzufahren."
 
-#: octoprint_mrbeam/static/js/app/view-models/mrbeam.js:238
+#: octoprint_mrbeam/static/js/app/view-models/mrbeam.js:244
 #: octoprint_mrbeam/static/js/app/view-models/wizard/wizard-acl.js:178
 #: octoprint_mrbeam/templates/wizard/wizard_acl.jinja2:23
 msgid "Invalid e-mail address"
 msgstr "Ungültige E-Mail-Adresse"
 
-#: octoprint_mrbeam/static/js/app/view-models/mrbeam.js:300
+#: octoprint_mrbeam/static/js/app/view-models/mrbeam.js:306
 #: octoprint_mrbeam/templates/loginscreen_viewmodel.jinja2:20
 #: octoprint_mrbeam/templates/loginscreen_viewmodel.jinja2:22
 #: octoprint_mrbeam/templates/wizard/wizard_acl.jinja2:21
 msgid "E-mail address"
 msgstr "E-Mail-Adresse"
 
-#: octoprint_mrbeam/static/js/app/view-models/mrbeam.js:499
-#: octoprint_mrbeam/static/js/app/view-models/mrbeam.js:513
-#: octoprint_mrbeam/static/js/app/view-models/mrbeam.js:524
+#: octoprint_mrbeam/static/js/app/view-models/mrbeam.js:505
+#: octoprint_mrbeam/static/js/app/view-models/mrbeam.js:519
+#: octoprint_mrbeam/static/js/app/view-models/mrbeam.js:530
 msgid "Session expired"
 msgstr "Sitzung abgelaufen"
 
-#: octoprint_mrbeam/static/js/app/view-models/mrbeam.js:500
+#: octoprint_mrbeam/static/js/app/view-models/mrbeam.js:506
 msgid "Trying to do a re-login..."
 msgstr "Ich versuche, mich neu anzumelden..."
 
-#: octoprint_mrbeam/static/js/app/view-models/mrbeam.js:514
+#: octoprint_mrbeam/static/js/app/view-models/mrbeam.js:520
 msgid "Re-login successful.<br/>Please repeat the last action."
 msgstr "Re-login erfolgreich.<br/>Bitte wiederhole die letzte Aktion."
 
-#: octoprint_mrbeam/static/js/app/view-models/mrbeam.js:525
+#: octoprint_mrbeam/static/js/app/view-models/mrbeam.js:531
 msgid "Please login again."
 msgstr "Bitte logge dich erneut ein."
 
-#: octoprint_mrbeam/static/js/app/view-models/mrbeam.js:582
+#: octoprint_mrbeam/static/js/app/view-models/mrbeam.js:588
 msgid "Browser not supported."
 msgstr "Browser wird nicht unterstützt."
 
-#: octoprint_mrbeam/static/js/app/view-models/mrbeam.js:584
+#: octoprint_mrbeam/static/js/app/view-models/mrbeam.js:590
 #, python-format
 msgid ""
 "Mr Beam makes use of latest web technologies which might not be fully "
@@ -521,11 +526,11 @@ msgstr ""
 "vollständig unterstützt werden.%(br)sBitte verwende die neueste Version von "
 "%(open)sGoogle Chrome%(close)s für Mr Beam."
 
-#: octoprint_mrbeam/static/js/app/view-models/mrbeam.js:605
+#: octoprint_mrbeam/static/js/app/view-models/mrbeam.js:611
 msgid "Beta user: Please consider enabling Mr Beam Better Together!"
 msgstr "Beta-Nutzer: Bitte aktiviere Mr Beam Gemeinsam Vorankommen!"
 
-#: octoprint_mrbeam/static/js/app/view-models/mrbeam.js:609
+#: octoprint_mrbeam/static/js/app/view-models/mrbeam.js:615
 #, python-format
 msgid ""
 "As you are currently in our Beta channel, you would help us tremendously "
@@ -537,11 +542,11 @@ msgstr ""
 "deines Mr Beams hilft es uns enorm, wenn du mit uns Diagnosedaten teilst. "
 "Danke! Direkt %(br)s%(open)szu Gemeinsam Vorankommen%(close)s"
 
-#: octoprint_mrbeam/static/js/app/view-models/review.js:236
+#: octoprint_mrbeam/static/js/app/view-models/review.js:245
 msgid "Error while saving review!"
 msgstr "Fehler beim Speichern deine Bewertung!"
 
-#: octoprint_mrbeam/static/js/app/view-models/review.js:238
+#: octoprint_mrbeam/static/js/app/view-models/review.js:247
 #, python-format
 msgid ""
 "Unable to save your review at the moment.%(br)sCheck connection to Mr Beam "
@@ -902,12 +907,13 @@ msgstr "Schließen"
 # don’t change the link
 #: octoprint_mrbeam/static/js/app/view-models/user-notification.js:19
 #: octoprint_mrbeam/static/js/app/view-models/user-notification.js:58
-#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:76
-#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:94
-#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:125
-#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:158
-#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:208
-#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:352
+#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:77
+#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:96
+#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:129
+#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:164
+#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:215
+#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:281
+#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:380
 #: octoprint_mrbeam/templates/calibration/user/view_corner_calibration.jinja2:16
 #: octoprint_mrbeam/templates/laserhead_changed.jinja2:25
 #: octoprint_mrbeam/templates/laserhead_changed.jinja2:41
@@ -945,11 +951,11 @@ msgstr ""
 "Wenn dies das Problem nicht löst, eröffne bitte %(opening_tag_support)sein "
 "Support-Ticket%(closing_tag_support)s."
 
-#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:66
+#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:67
 msgid "Bottom plate not detected"
 msgstr "Bodenplatte nicht erkannt"
 
-#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:68
+#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:69
 #, python-format
 msgid ""
 "The device is currently not able to start any laser job.\n"
@@ -968,13 +974,13 @@ msgstr ""
 "Wenn dies das Problem nicht löst, eröffne bitte %(opening_tag_support)sein "
 "Support-Ticket%(closing_tag_support)s."
 
-#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:84
-#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:232
-#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:247
+#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:86
+#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:240
+#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:256
 msgid "Hardware malfunction"
 msgstr "Hardware-Funktionsstörung"
 
-#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:86
+#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:88
 #, python-format
 msgid ""
 "The device is currently not able to start any laser job.\n"
@@ -993,11 +999,11 @@ msgstr ""
 "Wenn dies das Problem nicht löst, eröffne bitte %(opening_tag_support)sein "
 "Support-Ticket%(closing_tag_support)s."
 
-#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:102
+#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:105
 msgid "Unknown malfunction"
 msgstr "Unbekannte Fehlfunktion"
 
-#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:104
+#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:107
 #, python-format
 msgid ""
 "The device is properly currently not able to start any laser job.\n"
@@ -1009,11 +1015,11 @@ msgstr ""
 "Bitte %(opening_tag_support)söffnen Sie ein Support-"
 "Ticket%(closing_tag_support)s."
 
-#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:115
+#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:119
 msgid "Compressor malfunction"
 msgstr "Kompressor Funktionsstörung"
 
-#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:117
+#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:121
 #, python-format
 msgid ""
 "The device is currently not able to start any laser job.\n"
@@ -1034,11 +1040,11 @@ msgstr ""
 "Wenn dies das Problem nicht löst, eröffne bitte %(opening_tag_support)sein "
 "Support-Ticket%(closing_tag_support)s."
 
-#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:133
+#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:138
 msgid "One Button malfunction"
 msgstr "One Button Funktionsstörung"
 
-#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:135
+#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:140
 #, python-format
 msgid ""
 "The device is currently not able to start any laser job.\n"
@@ -1054,11 +1060,11 @@ msgstr ""
 "Bitte %(opening_tag_support)söffnen ein Support-"
 "Ticket%(closing_tag_support)s."
 
-#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:148
+#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:154
 msgid "Interlock malfunction"
 msgstr "Interlock Funktionsstörung"
 
-#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:150
+#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:156
 #, python-format
 msgid ""
 "The device is currently not able to start any laser job.\n"
@@ -1077,21 +1083,21 @@ msgstr ""
 "Wenn dies das Problem nicht löst, eröffne bitte %(opening_tag_support)sein "
 "Support-Ticket%(closing_tag_support)s."
 
-#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:166
+#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:173
 msgid "Camera busy"
 msgstr "Kamera beschäftigt"
 
-#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:167
+#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:174
 msgid "The camera was stopped recently, it will take a few seconds to restart."
 msgstr ""
 "Die Kamera wurde vor kurzem gestoppt, es wird einige Sekunden dauern, bis "
 "sie wieder startet."
 
-#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:174
+#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:181
 msgid "No update information"
 msgstr "Keine Informationen für Updates"
 
-#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:175
+#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:182
 msgid ""
 "No information about available updates could be retrieved, please try again "
 "later. Errorcode: E-1000"
@@ -1099,19 +1105,19 @@ msgstr ""
 "Es konnten keine Informationen über updates ermittelt werden, probiere es "
 "später noch einmal. Errorcode: E-1000"
 
-#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:182
-#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:190
+#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:189
+#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:197
 msgid "Error during fetching update information"
 msgstr "Fehler währen der Ermittlung von update Informationen"
 
-#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:183
+#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:190
 msgid ""
 "There was a error during fetching the update information Errorcode: E-1001"
 msgstr ""
 "Es gab einen Fehler währen der Ermittlung von update Informationen. "
 "Errorcode: E-1001"
 
-#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:191
+#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:198
 msgid ""
 "There was a error during fetching the update information, please try again "
 "later."
@@ -1119,11 +1125,11 @@ msgstr ""
 "Es gab einen Fehler währen der Ermittlung von update Informationen, probiere "
 "es später noch einmal."
 
-#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:198
+#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:205
 msgid "Camera malfunction"
 msgstr "Kamera Funktionsstörung"
 
-#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:200
+#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:207
 #, python-format
 msgid ""
 "You can still use the device by aligning manually without camera support. "
@@ -1143,11 +1149,11 @@ msgstr ""
 "Wenn dies das Problem nicht löst, kannst du %(opening_tag_support)sein "
 "Support-Ticket%(closing_tag_support)s eröffnen."
 
-#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:216
+#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:224
 msgid "Laser job canceled"
 msgstr "Der Laservorgang wurde abgebrochen"
 
-#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:218
+#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:226
 #, python-format
 msgid ""
 "The job was canceled due to an error - we apologize for any inconvenience.\n"
@@ -1165,7 +1171,7 @@ msgstr ""
 "Wenn dies das Problem nicht löst, öffnen bitte %(opening_tag_support)sein "
 "Support-Ticket%(closing_tag_support)s."
 
-#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:234
+#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:242
 #, python-format
 msgid ""
 "The device is currently not able to start any laser job.\n"
@@ -1182,7 +1188,7 @@ msgstr ""
 "Wenn dies das Problem nicht löst, öffne bitte %(opening_tag_support)sein "
 "Support-Ticket%(closing_tag_support)s."
 
-#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:249
+#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:258
 #, python-format
 msgid ""
 "Your Air Filter or single Fan is not spinning properly.\n"
@@ -1197,11 +1203,33 @@ msgstr ""
 "\n"
 "Bitte %(opening_tag_support)söffne ein Support-Ticket%(closing_tag_support)s."
 
-#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:262
+#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:272
+msgid "Check Air Filter System hose"
+msgstr "Überprüfe den Schlauch vom Air Filter System"
+
+#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:274
+#, python-format
+msgid ""
+"The hose of your Air Filter System might be blocked or is clogged.\n"
+"Please check the hose by following the %(opening_tag)sKnowledgebase "
+"article%(closing_tag)s.\n"
+"\n"
+"If this doesn’t solve the problem, please %(opening_tag_support)sopen a "
+"support ticket%(closing_tag_support)s."
+msgstr ""
+"Der Schlauch vom Air Filter System ist vermutlich verstopft oder verknickt.\n"
+"\n"
+"Bitte überprüfe den Schlauch anhand des %(opening_tag)sKnowledgebase-"
+"Artikels%(closing_tag)s.\n"
+"\n"
+"Wenn dies das Problem nicht löst, eröffne bitte %(opening_tag_support)sein "
+"Support-Ticket%(closing_tag_support)s."
+
+#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:290
 msgid "Thank you"
 msgstr "Danke"
 
-#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:263
+#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:291
 msgid ""
 "The last image from your camera was submitted to Mr Beam and is going to be "
 "uploaded silently in the background."
@@ -1209,16 +1237,16 @@ msgstr ""
 "Das letzte Bild der Kamera wurde an Mr Beam übermittelt und wird nun still "
 "im Hintergrund hochgeladen."
 
-#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:269
+#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:297
 msgid "Lens Calibration Over"
 msgstr "Linsenkalibrierung abgeschlossen"
 
-#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:270
+#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:298
 msgid "A new lens calibration file has been created and is now being used."
 msgstr ""
 "Eine neue Linsenkalibrierungs-Datei wurde erstellt und wird nun verwendet."
 
-#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:367
+#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:395
 #, python-format
 msgid ""
 "For more information check out this %(opening_tag)sKnowledge Base "
@@ -1227,16 +1255,16 @@ msgstr ""
 "Weitere Informationen findest Du in diesem %(opening_tag)sKnowledge Base-"
 "Artikel%(closing_tag)s"
 
-#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:384
+#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:412
 #, python-format
 msgid "Browse our %(opening_tag)sKnowledge Base%(closing_tag)s"
 msgstr "Gehe zu unserer %(opening_tag)sKnowledge Base%(closing_tag)s"
 
-#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:404
+#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:432
 msgid "Error:"
 msgstr "Fehler:"
 
-#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:418
+#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:446
 msgid "Error Code:"
 msgstr "Fehler-Code:"
 
@@ -2016,15 +2044,15 @@ msgstr ""
 "Datei laden. Bitte stelle sicher, dass es sich um eine Sicherungsdatei der "
 "Mr Beam benutzerdefinierten Materialeinstellungen handelt."
 
-#: octoprint_mrbeam/static/js/app/view-models/settings/maintenance.js:11
+#: octoprint_mrbeam/static/js/app/view-models/settings/maintenance.js:12
 msgid "pre-filter"
 msgstr "Vorfilter"
 
-#: octoprint_mrbeam/static/js/app/view-models/settings/maintenance.js:12
+#: octoprint_mrbeam/static/js/app/view-models/settings/maintenance.js:13
 msgid "Pre-Filter capacity reached 70%"
 msgstr "Vorfilter hat 70 % Kapazität erreicht"
 
-#: octoprint_mrbeam/static/js/app/view-models/settings/maintenance.js:15
+#: octoprint_mrbeam/static/js/app/view-models/settings/maintenance.js:16
 msgid ""
 "At this level, we highly recommend having a visual check on the pre-filter "
 "to make sure the estimation is representing the fill level of your filter. "
@@ -2036,15 +2064,15 @@ msgstr ""
 "deinem Gerät verarbeitest."
 
 # Filters fmessages in the terminal
-#: octoprint_mrbeam/static/js/app/view-models/settings/maintenance.js:18
+#: octoprint_mrbeam/static/js/app/view-models/settings/maintenance.js:19
 msgid "main filter"
 msgstr "Hauptfilter"
 
-#: octoprint_mrbeam/static/js/app/view-models/settings/maintenance.js:19
+#: octoprint_mrbeam/static/js/app/view-models/settings/maintenance.js:20
 msgid "Main-Filter capacity reached 70%"
 msgstr "Hauptfilter hat 70 % Kapazität erreicht"
 
-#: octoprint_mrbeam/static/js/app/view-models/settings/maintenance.js:22
+#: octoprint_mrbeam/static/js/app/view-models/settings/maintenance.js:23
 msgid ""
 "At this level, we highly recommend to have a visual check on the main-filter "
 "to make sure the estimation is representing the fill level of your filter. "
@@ -2056,43 +2084,35 @@ msgstr ""
 "Material Du mit deinem Gerät verarbeitest."
 
 # Settings > About Screen
-#: octoprint_mrbeam/static/js/app/view-models/settings/maintenance.js:25
+#: octoprint_mrbeam/static/js/app/view-models/settings/maintenance.js:26
 msgid "laser head"
 msgstr "Laserkopf"
 
-#: octoprint_mrbeam/static/js/app/view-models/settings/maintenance.js:26
+#: octoprint_mrbeam/static/js/app/view-models/settings/maintenance.js:27
 msgid "mechanics"
 msgstr "Mechanik"
 
-#: octoprint_mrbeam/static/js/app/view-models/settings/maintenance.js:56
-#: octoprint_mrbeam/static/js/app/view-models/settings/maintenance.js:60
-#: octoprint_mrbeam/static/js/app/view-models/settings/maintenance.js:63
-#: octoprint_mrbeam/static/js/app/view-models/settings/maintenance.js:66
-#, python-format
-msgid "/%(lifespan)s hrs"
-msgstr "/%(lifespan)s h"
-
-#: octoprint_mrbeam/static/js/app/view-models/settings/maintenance.js:147
+#: octoprint_mrbeam/static/js/app/view-models/settings/maintenance.js:139
 msgid "Did you change the pre-filter?"
 msgstr "Hast du den Vorfilter gewechselt?"
 
-#: octoprint_mrbeam/static/js/app/view-models/settings/maintenance.js:149
+#: octoprint_mrbeam/static/js/app/view-models/settings/maintenance.js:141
 msgid "Did you change the main filter?"
 msgstr "Hast du den Hauptfilter gewechselt?"
 
-#: octoprint_mrbeam/static/js/app/view-models/settings/maintenance.js:151
+#: octoprint_mrbeam/static/js/app/view-models/settings/maintenance.js:143
 msgid "Did you clean the laser head?"
 msgstr "Hast Du den Laserkopf gereinigt?"
 
-#: octoprint_mrbeam/static/js/app/view-models/settings/maintenance.js:153
+#: octoprint_mrbeam/static/js/app/view-models/settings/maintenance.js:145
 msgid "Did you clean the mechanics?"
 msgstr "Hast du die Mechanik gereinigt?"
 
-#: octoprint_mrbeam/static/js/app/view-models/settings/maintenance.js:444
+#: octoprint_mrbeam/static/js/app/view-models/settings/maintenance.js:420
 msgid "Maintenance required"
 msgstr "Wartungsbedarf"
 
-#: octoprint_mrbeam/static/js/app/view-models/settings/maintenance.js:446
+#: octoprint_mrbeam/static/js/app/view-models/settings/maintenance.js:422
 #, python-format
 msgid ""
 "Regular maintenance on your Mr Beam is due.%(br)s Please check the "
@@ -4543,7 +4563,7 @@ msgstr ""
 "Mr Beam Lasers wird das Bild weder veröffentlichen noch an Dritte verkaufen."
 
 # URL - do not translate/modify
-#: octoprint_mrbeam/templates/settings/about_settings.jinja2:86
+#: octoprint_mrbeam/templates/settings/about_settings.jinja2:97
 #: octoprint_mrbeam/templates/tab_workingarea.jinja2:226
 msgid "/plugin/mrbeam/static/docs/MrBeamAnalytics-PrivacyPolicy_en.pdf"
 msgstr "/plugin/mrbeam/static/docs/MrBeamAnalytics-PrivacyPolicy_de.pdf"
@@ -4909,8 +4929,8 @@ msgstr "Bitte führe zuerst einen Homing-Zyklus durch"
 #: octoprint_mrbeam/templates/calibration/user/view_corner_calibration.jinja2:37
 msgid ""
 "Wait until the engraving is finished and Mr Beam Status Lights are green. "
-"Open the safety lid again and be carefult NOT to touch the engraved "
-"material. The camera will now take a picture of the engraving."
+"Open the safety lid again and be careful NOT to touch the engraved material. "
+"The camera will now take a picture of the engraving."
 msgstr ""
 "Warte, bis die Gravur beendet ist und die Mr Beam Status Lights grün "
 "leuchten. Öffne den Sicherheitsdeckel wieder OHNE dabei das gravierte "
@@ -5287,130 +5307,132 @@ msgid "Laser head"
 msgstr "Laserkopf"
 
 #: octoprint_mrbeam/templates/settings/about_settings.jinja2:22
+#: octoprint_mrbeam/templates/settings/about_settings.jinja2:31
 msgid "Model"
 msgstr "Modell"
 
 #: octoprint_mrbeam/templates/settings/about_settings.jinja2:28
+msgid "Air Filter System"
+msgstr "Air Filter System"
+
+#: octoprint_mrbeam/templates/settings/about_settings.jinja2:36
 msgid "Network interfaces"
 msgstr "Netzwerk-Schnittstellen"
 
 # Settings > About Screen
-#: octoprint_mrbeam/templates/settings/about_settings.jinja2:44
+#: octoprint_mrbeam/templates/settings/about_settings.jinja2:52
 msgid "Mr Beam Plugin"
 msgstr "Mr Beam Plugin"
 
 # do not translate
 # Settings > About Screen
-#: octoprint_mrbeam/templates/settings/about_settings.jinja2:46
+#: octoprint_mrbeam/templates/settings/about_settings.jinja2:54
 msgid "Image fingerprint"
 msgstr "Image-Fingerprint"
 
 # Settings > About Screen
-#: octoprint_mrbeam/templates/settings/about_settings.jinja2:47
+#: octoprint_mrbeam/templates/settings/about_settings.jinja2:55
 msgid "Software channel"
 msgstr "Software-Channel"
 
 # do not translate
 # Settings > About Screen
-#: octoprint_mrbeam/templates/settings/about_settings.jinja2:48
+#: octoprint_mrbeam/templates/settings/about_settings.jinja2:56
 msgid "Environment"
 msgstr "Environment"
 
 # do not translate
 # Settings > About Screen
-#: octoprint_mrbeam/templates/settings/about_settings.jinja2:49
+#: octoprint_mrbeam/templates/settings/about_settings.jinja2:57
 msgid "grbl"
 msgstr "grbl"
 
 # Settings > About Screen
-#: octoprint_mrbeam/templates/settings/about_settings.jinja2:67
+#: octoprint_mrbeam/templates/settings/about_settings.jinja2:78
 msgid "Documentation, Support and Privacy"
 msgstr "Dokumentation, Support und Datenschutz"
 
 # Settings > About Screen
-#: octoprint_mrbeam/templates/settings/about_settings.jinja2:77
+#: octoprint_mrbeam/templates/settings/about_settings.jinja2:88
 msgid "get the latest versions"
 msgstr "Bekomme die neuesten Versionen"
 
 # Settings > About Screen
-#: octoprint_mrbeam/templates/settings/about_settings.jinja2:77
+#: octoprint_mrbeam/templates/settings/about_settings.jinja2:88
 msgid "online"
 msgstr "online"
 
 # Settings > About Screen
-#: octoprint_mrbeam/templates/settings/about_settings.jinja2:82
+#: octoprint_mrbeam/templates/settings/about_settings.jinja2:93
 msgid "Online Support Portal"
 msgstr "Online Support Portal"
 
 # Settings > About Screen
-#: octoprint_mrbeam/templates/settings/about_settings.jinja2:83
+#: octoprint_mrbeam/templates/settings/about_settings.jinja2:94
 msgid "Privacy Policies"
 msgstr "Datenschutzbestimmungen"
 
 # don’t change the link
-#: octoprint_mrbeam/templates/settings/about_settings.jinja2:84
-#: octoprint_mrbeam/templates/settings/maintenance_settings.jinja2:27
-#: octoprint_mrbeam/templates/settings/maintenance_settings.jinja2:46
-#: octoprint_mrbeam/templates/settings/maintenance_settings.jinja2:76
-#: octoprint_mrbeam/templates/settings/maintenance_settings.jinja2:104
+#: octoprint_mrbeam/templates/settings/about_settings.jinja2:95
+#: octoprint_mrbeam/templates/settings/maintenance_settings.jinja2:161
 msgid "https://www.mr-beam.org/en"
 msgstr "https://www.mr-beam.org"
 
 # Settings > About Screen
-#: octoprint_mrbeam/templates/settings/about_settings.jinja2:84
+#: octoprint_mrbeam/templates/settings/about_settings.jinja2:95
 msgid "Mr Beam Web Site"
 msgstr "Mr Beam Website"
 
 # Settings > About Screen
-#: octoprint_mrbeam/templates/settings/about_settings.jinja2:85
-#: octoprint_mrbeam/templates/settings/about_settings.jinja2:108
+#: octoprint_mrbeam/templates/settings/about_settings.jinja2:96
+#: octoprint_mrbeam/templates/settings/about_settings.jinja2:119
 msgid "find.mr-beam service"
 msgstr "find.mr-beam Service"
 
 # Settings > About Screen
-#: octoprint_mrbeam/templates/settings/about_settings.jinja2:86
+#: octoprint_mrbeam/templates/settings/about_settings.jinja2:97
 msgid "Mr Beam Analytics"
 msgstr "Mr Beam Analytics"
 
 # Settings > About Screen
-#: octoprint_mrbeam/templates/settings/about_settings.jinja2:94
+#: octoprint_mrbeam/templates/settings/about_settings.jinja2:105
 msgid "Links"
 msgstr "Links"
 
 # Settings > About Screen
-#: octoprint_mrbeam/templates/settings/about_settings.jinja2:97
+#: octoprint_mrbeam/templates/settings/about_settings.jinja2:108
 msgid "Website"
 msgstr "Webseite"
 
 # Settings > About Screen
-#: octoprint_mrbeam/templates/settings/about_settings.jinja2:98
+#: octoprint_mrbeam/templates/settings/about_settings.jinja2:109
 msgid "Social media"
 msgstr "Soziale Medien"
 
-#: octoprint_mrbeam/templates/settings/about_settings.jinja2:107
+#: octoprint_mrbeam/templates/settings/about_settings.jinja2:118
 msgid "Official user group"
 msgstr "Offizielle User-Group"
 
-#: octoprint_mrbeam/templates/settings/about_settings.jinja2:107
+#: octoprint_mrbeam/templates/settings/about_settings.jinja2:118
 msgid "on Facebook"
 msgstr "auf Facebook"
 
-#: octoprint_mrbeam/templates/settings/about_settings.jinja2:107
+#: octoprint_mrbeam/templates/settings/about_settings.jinja2:118
 msgid "German"
 msgstr "Deutsch"
 
 # Settings > About Screen
-#: octoprint_mrbeam/templates/settings/about_settings.jinja2:109
+#: octoprint_mrbeam/templates/settings/about_settings.jinja2:120
 msgid "Online resources"
 msgstr "Online-Ressourcen"
 
 # Settings > About Screen
-#: octoprint_mrbeam/templates/settings/about_settings.jinja2:109
+#: octoprint_mrbeam/templates/settings/about_settings.jinja2:120
 msgid "Mr Beam Downloads"
 msgstr "Mr Beam Downloads"
 
 # Settings > About Screen
-#: octoprint_mrbeam/templates/settings/about_settings.jinja2:110
+#: octoprint_mrbeam/templates/settings/about_settings.jinja2:121
 msgid "Source code"
 msgstr "Quellcode"
 
@@ -5939,11 +5961,52 @@ msgstr "Animationsgeschwindigkeit"
 msgid "Adjust the animation speed of Mr Beam Lights."
 msgstr "Passe die Animationsgeschwindigkeit der Mr Beam Lights an."
 
-#: octoprint_mrbeam/templates/settings/maintenance_settings.jinja2:11
+#: octoprint_mrbeam/templates/settings/maintenance_settings.jinja2:12
+#: octoprint_mrbeam/templates/settings/maintenance_settings.jinja2:68
 msgid "Air Filter: Pre-filter"
 msgstr "Air Filter: Vorfilter"
 
-#: octoprint_mrbeam/templates/settings/maintenance_settings.jinja2:13
+#: octoprint_mrbeam/templates/settings/maintenance_settings.jinja2:14
+msgid ""
+"The pre filter filters all coarse particles from the exhaust air. Regular "
+"changing improves the air flow and preserves the main filter.*"
+msgstr ""
+"Der Vorfilter filtert alle groben Partikel aus der Abluft. Ein regelmäßiger "
+"Wechsel verbessert den Luftdurchsatz und schont den Hauptfilter. *"
+
+#: octoprint_mrbeam/templates/settings/maintenance_settings.jinja2:21
+#: octoprint_mrbeam/templates/settings/maintenance_settings.jinja2:50
+#: octoprint_mrbeam/templates/settings/maintenance_settings.jinja2:87
+#: octoprint_mrbeam/templates/settings/maintenance_settings.jinja2:106
+#: octoprint_mrbeam/templates/settings/maintenance_settings.jinja2:136
+#: octoprint_mrbeam/templates/settings/maintenance_settings.jinja2:164
+msgid "Buy now"
+msgstr "Jetzt kaufen"
+
+#: octoprint_mrbeam/templates/settings/maintenance_settings.jinja2:31
+#: octoprint_mrbeam/templates/settings/maintenance_settings.jinja2:60
+#: octoprint_mrbeam/templates/settings/maintenance_settings.jinja2:119
+#: octoprint_mrbeam/templates/settings/maintenance_settings.jinja2:146
+#: octoprint_mrbeam/templates/settings/maintenance_settings.jinja2:179
+#: octoprint_mrbeam/templates/settings/maintenance_settings.jinja2:206
+msgid "used"
+msgstr "verbraucht"
+
+#: octoprint_mrbeam/templates/settings/maintenance_settings.jinja2:41
+#: octoprint_mrbeam/templates/settings/maintenance_settings.jinja2:128
+msgid "Air Filter: Main filter"
+msgstr "Air Filter: Hauptfilter"
+
+#: octoprint_mrbeam/templates/settings/maintenance_settings.jinja2:43
+#: octoprint_mrbeam/templates/settings/maintenance_settings.jinja2:130
+msgid ""
+"The main filter is a combined hepa and activated carbon filter. It filters "
+"both tiny particles and odours from the exhaust air.*"
+msgstr ""
+"Der Hauptfilter ist ein kombinierter Hepa- und Aktivkohlefilter. Er filtert "
+"sowohl winzig kleine Partikel, als auch die Gerüche aus der Abluft. *"
+
+#: octoprint_mrbeam/templates/settings/maintenance_settings.jinja2:70
 msgid ""
 "Please choose which pre-filter you are using, so the maintenance counter can "
 "be adjusted accordingly."
@@ -5951,11 +6014,11 @@ msgstr ""
 "Bitte wähle aus, welchen Vorfilter du nutzt, damit die Wartungsintervalle "
 "angepasst werden können."
 
-#: octoprint_mrbeam/templates/settings/maintenance_settings.jinja2:22
+#: octoprint_mrbeam/templates/settings/maintenance_settings.jinja2:79
 msgid "Pre-filter mat (pink)"
 msgstr "Vorfiltermatte (rosa)"
 
-#: octoprint_mrbeam/templates/settings/maintenance_settings.jinja2:24
+#: octoprint_mrbeam/templates/settings/maintenance_settings.jinja2:81
 msgid ""
 "The pink pre-filter mat is suitable for all those who use materials that "
 "cause little material abrasion (acrylic felt, slate, concrete, foam rubber, "
@@ -5965,18 +6028,11 @@ msgstr ""
 "arbeiten, die wenig Materialabrieb verursachen (Acrylfilz, Schiefer, Beton, "
 "Moosgummi, Acryl, etc.)."
 
-#: octoprint_mrbeam/templates/settings/maintenance_settings.jinja2:30
-#: octoprint_mrbeam/templates/settings/maintenance_settings.jinja2:49
-#: octoprint_mrbeam/templates/settings/maintenance_settings.jinja2:79
-#: octoprint_mrbeam/templates/settings/maintenance_settings.jinja2:107
-msgid "Buy now"
-msgstr "Jetzt kaufen"
-
-#: octoprint_mrbeam/templates/settings/maintenance_settings.jinja2:41
+#: octoprint_mrbeam/templates/settings/maintenance_settings.jinja2:98
 msgid "Pre-filter (cartridge)"
 msgstr "Vorfilter (Kartusche)"
 
-#: octoprint_mrbeam/templates/settings/maintenance_settings.jinja2:43
+#: octoprint_mrbeam/templates/settings/maintenance_settings.jinja2:100
 msgid ""
 "The pre-filter cartridge is best suited for power users who process a lot of "
 "wood, cardboard, Kraftplex or also stamp rubber."
@@ -5984,38 +6040,19 @@ msgstr ""
 "Die Vorfilterpatrone eignet sich am besten für Power-User, die viel Holz, "
 "Karton, Kraftplex oder auch Stempelgummi verarbeiten."
 
-#: octoprint_mrbeam/templates/settings/maintenance_settings.jinja2:62
-#: octoprint_mrbeam/templates/settings/maintenance_settings.jinja2:89
 #: octoprint_mrbeam/templates/settings/maintenance_settings.jinja2:122
 #: octoprint_mrbeam/templates/settings/maintenance_settings.jinja2:149
-msgid "used"
-msgstr "verbraucht"
-
-#: octoprint_mrbeam/templates/settings/maintenance_settings.jinja2:65
-#: octoprint_mrbeam/templates/settings/maintenance_settings.jinja2:92
-#: octoprint_mrbeam/templates/settings/maintenance_settings.jinja2:125
-#: octoprint_mrbeam/templates/settings/maintenance_settings.jinja2:152
+#: octoprint_mrbeam/templates/settings/maintenance_settings.jinja2:182
+#: octoprint_mrbeam/templates/settings/maintenance_settings.jinja2:209
 msgid "Reset"
 msgstr "Zurücksetzen"
 
-#: octoprint_mrbeam/templates/settings/maintenance_settings.jinja2:71
-msgid "Air Filter: Main filter"
-msgstr "Air Filter: Hauptfilter"
-
-#: octoprint_mrbeam/templates/settings/maintenance_settings.jinja2:73
-msgid ""
-"The main filter is a combined hepa and activated carbon filter. It filters "
-"both tiny particles and odours from the exhaust air.*"
-msgstr ""
-"Der Hauptfilter ist ein kombinierter Hepa- und Aktivkohlefilter. Er filtert "
-"sowohl winzig kleine Partikel, als auch die Gerüche aus der Abluft. *"
-
 # Settings > About Screen
-#: octoprint_mrbeam/templates/settings/maintenance_settings.jinja2:98
+#: octoprint_mrbeam/templates/settings/maintenance_settings.jinja2:155
 msgid "Laser head cleaning"
 msgstr "Laserkopf-Reinigung"
 
-#: octoprint_mrbeam/templates/settings/maintenance_settings.jinja2:101
+#: octoprint_mrbeam/templates/settings/maintenance_settings.jinja2:158
 msgid ""
 "Clean the laser head regularly to maintain its full performance. You can "
 "either do it yourself or you can send it to us and we clean it for you!"
@@ -6024,26 +6061,26 @@ msgstr ""
 "Das kannst du entweder selber durchführen oder du schickst ihn zu uns und "
 "wir reinigen ihn für dich!"
 
-#: octoprint_mrbeam/templates/settings/maintenance_settings.jinja2:112
+#: octoprint_mrbeam/templates/settings/maintenance_settings.jinja2:169
 msgid "How to clean a laser head"
 msgstr "So reinigst Du einen Laserkopf"
 
-#: octoprint_mrbeam/templates/settings/maintenance_settings.jinja2:131
+#: octoprint_mrbeam/templates/settings/maintenance_settings.jinja2:188
 msgid "Mechanics"
 msgstr "Mechanik"
 
-#: octoprint_mrbeam/templates/settings/maintenance_settings.jinja2:133
+#: octoprint_mrbeam/templates/settings/maintenance_settings.jinja2:190
 msgid ""
 "The gantry should always be clean. Oil it regularly with an acid-free oil."
 msgstr ""
 "Die Linearführungen sollten immer sauber sein und regelmäßig mit einem "
 "säurefreien Öl geölt werden."
 
-#: octoprint_mrbeam/templates/settings/maintenance_settings.jinja2:139
+#: octoprint_mrbeam/templates/settings/maintenance_settings.jinja2:196
 msgid "Caring of the mechanical parts"
 msgstr "Pflege der mechanischen Teile"
 
-#: octoprint_mrbeam/templates/settings/maintenance_settings.jinja2:156
+#: octoprint_mrbeam/templates/settings/maintenance_settings.jinja2:213
 msgid ""
 "*Users without a Mr Beam Air Filter System can safely ignore and reset this "
 "counter."
@@ -6051,7 +6088,7 @@ msgstr ""
 "* Benutzer ohne Mr. Beam Air Filter System können diesen Zähler ignorieren "
 "und zurücksetzen."
 
-#: octoprint_mrbeam/templates/settings/maintenance_settings.jinja2:164
+#: octoprint_mrbeam/templates/settings/maintenance_settings.jinja2:221
 #, python-format
 msgid ""
 "The hour counter for the following component will now be reset: "
@@ -6060,7 +6097,7 @@ msgstr ""
 "Der Stundenzähler für folgende Komponente wird zurückgesetzt: "
 "%(component_to_reset)s."
 
-#: octoprint_mrbeam/templates/settings/maintenance_settings.jinja2:165
+#: octoprint_mrbeam/templates/settings/maintenance_settings.jinja2:222
 msgid "Please notice that there is no way to undo this operation"
 msgstr "Dies kann nicht rückgängig gemacht werden"
 
@@ -6635,6 +6672,10 @@ msgstr ""
 msgid "We hope you enjoy this new experience!"
 msgstr "Wir hoffen, dass Du viel Freude mit diesem Update hast!"
 
+#, python-format
+#~ msgid "/%(lifespan)s hrs"
+#~ msgstr "/%(lifespan)s h"
+
 #~ msgid ""
 #~ "\n"
 #~ "<h4>Show your creation and use our hashtag <a href=\"https://mr-beam.org/"
@@ -6682,14 +6723,6 @@ msgstr "Wir hoffen, dass Du viel Freude mit diesem Update hast!"
 #~ "Stelle die Höhe der Oberfläche über dem Boden ein, damit die "
 #~ "Kameravorschau genau ist:"
 
-#~ msgid ""
-#~ "The pre filter filters all coarse particles from the exhaust air. Regular "
-#~ "changing improves the air flow and preserves the main filter.*"
-#~ msgstr ""
-#~ "Der Vorfilter filtert alle groben Partikel aus der Abluft. Ein "
-#~ "regelmäßiger Wechsel verbessert den Luftdurchsatz und schont den "
-#~ "Hauptfilter. *"
-
 # don’t change the link
 #~ msgid "https://mr-beam.freshdesk.com/en/"
 #~ msgstr "https://www.mr-beam.org/de/"
diff --git a/tests/analytics/test_usage_handler.py b/tests/analytics/test_usage_handler.py
index 29d964867..9bc90eb4b 100644
--- a/tests/analytics/test_usage_handler.py
+++ b/tests/analytics/test_usage_handler.py
@@ -4,6 +4,7 @@
 from _pytest.python_api import approx
 from mock.mock import MagicMock, patch
 from mock import mock_open
+from octoprint_mrbeam.mrbeam_events import MrBeamEvents
 
 from octoprint_mrbeam import IoBeamEvents, AirFilter
 from octoprint_mrbeam.analytics.usage_handler import (
@@ -407,6 +408,7 @@ def test_set_pressure_when_filter_stage_is_not_valid(
 def test_set_fan_test_rpm(usage_handler, mrbeam_plugin):
     # Arrange
     mrbeam_plugin.airfilter.set_airfilter(8, AIRFILTER_SERIAL)
+    wait_till_event_received(usage_handler._event_bus, MrBeamEvents.AIRFILTER_CHANGED)
 
     # Act
     with patch(
@@ -424,10 +426,6 @@ def test_set_fan_test_rpm(usage_handler, mrbeam_plugin):
     )
 
 
-# TODO TEST time higher as pressure
-# TODO test reset if 20% lower
-
-
 @pytest.mark.parametrize(
     "graph, value, expected",
     [
@@ -463,3 +461,24 @@ def test_get_precentage_from_interpolation_when_invalid_input(
 
     # Assert
     assert result == expected
+
+
+@pytest.mark.parametrize(
+    "model",
+    [
+        2,
+        8,
+    ],
+)
+def test_get_percentage_for_empty_usage_data(model, usage_handler, mrbeam_plugin):
+    # Arrange
+    usage_handler._usage_data = {}
+    mrbeam_plugin.airfilter.set_airfilter(model, AIRFILTER_SERIAL)
+
+    # Act
+    prefilter = usage_handler.get_prefilter_usage()
+    mainfilter = usage_handler.get_prefilter_usage()
+
+    # Assert
+    assert prefilter == 0
+    assert mainfilter == 0
diff --git a/tests/conftest.py b/tests/conftest.py
index a4c3ab360..ecf50dddb 100644
--- a/tests/conftest.py
+++ b/tests/conftest.py
@@ -1,5 +1,7 @@
 # pytest config file
 import os
+import threading
+import time
 
 import octoprint
 import pytest
@@ -9,6 +11,7 @@
 
 from octoprint.settings import settings
 from octoprint.util import monotonic_time
+from octoprint_mrbeam.mrbeam_events import MrBeamEvents
 
 from octoprint_mrbeam import MrBeamPlugin, AirFilter
 
@@ -75,19 +78,62 @@ def mrbeam_plugin():
     yield mrbeam_plugin
 
 
-def wait_till_event_received(event_bus, event, timeout=0.1):
-    event_triggered = MagicMock()
-    event_bus.subscribe(event, event_triggered)
-    # Assert
+def wait_till_event_received(event_bus, event, timeout=5):
+    event_done = threading.Event()
+
+    def event_callback(event, payload):
+        event_done.set()
+
+    event_bus.subscribe(event, event_callback)
     starttime = monotonic_time()
-    while event_triggered.call_count == 0:
-        assert monotonic_time() - starttime < timeout  # approx(timeout, abs=0.1)
+
+    while not event_done.is_set():
+        time.sleep(0.1)
+        assert round(monotonic_time() - starttime, 2) <= timeout
 
 
 @pytest.fixture
 def air_filter(mrbeam_plugin):
     air_filter = AirFilter(mrbeam_plugin)
-    air_filter._event_bus = EventManager()
     air_filter._plugin.send_mrb_state = MagicMock()
-    air_filter._event_bus.fire = MagicMock()
+
+    subscribe(
+        air_filter._event_bus,
+        MrBeamEvents.MRB_PLUGIN_INITIALIZED,
+        air_filter._event_bus.fire,
+        MrBeamEvents.MRB_PLUGIN_INITIALIZED,
+    )
     return air_filter
+
+
+def subscribe(event_bus, event, func, *args, **kwargs):
+    debug = kwargs.get("debug", False)
+    timeout = kwargs.get("timeout", 5)
+    if debug:
+        print("subscribe called %s, (%s %s)", func, args, kwargs)
+
+    event_done = threading.Event()
+
+    def event_callback(event, payload):
+        if debug:
+            print("event_callback %s", event)
+        event_done.set()
+
+    event_bus.subscribe(event, event_callback)
+    starttime = monotonic_time()
+    if debug:
+        print("subscribed %s", event)
+
+    result = func(*args, **kwargs)
+    if debug:
+        print("function call")
+
+    while not event_done.is_set():
+        if debug:
+            print("waiting")
+        time.sleep(0.1)
+        assert round(monotonic_time() - starttime, 2) <= timeout
+
+    if debug:
+        print("done")
+    return result
diff --git a/tests/iobeam/test_airfilter.py b/tests/iobeam/test_airfilter.py
index 1895e593c..9eed00cab 100644
--- a/tests/iobeam/test_airfilter.py
+++ b/tests/iobeam/test_airfilter.py
@@ -1,7 +1,12 @@
 import pytest
-from mock.mock import MagicMock
+from mock.mock import MagicMock, patch
+from octoprint_mrbeam.iobeam.iobeam_handler import IoBeamEvents
+
+from octoprint_mrbeam.mrbeam_events import MrBeamEvents
 
 from octoprint_mrbeam.iobeam.airfilter import AirFilter, airfilter
+from octoprint_mrbeam.model.iobeam import exhaust
+from tests.conftest import subscribe
 
 DEFAULT_PROFILE = {
     "carbonfilter": [
@@ -23,6 +28,19 @@
 }
 
 
+def set_airfilter(airfilter, model_id, serial):
+    if model_id is not None and serial is not None:
+        subscribe(
+            airfilter._event_bus,
+            MrBeamEvents.AIRFILTER_CHANGED,
+            airfilter.set_airfilter,
+            model_id,
+            serial,
+        )
+    else:
+        airfilter.set_airfilter(model_id, serial)
+
+
 def test_singelton(mrbeam_plugin):
     # Arrange
     air_filter = airfilter(mrbeam_plugin)
@@ -38,7 +56,7 @@ def test_set_airfilter(air_filter):
     # Arrange
 
     # Act
-    air_filter.set_airfilter(8, "123456")
+    set_airfilter(air_filter, 8, "123456")
     # Assert
     assert air_filter.model_id == 8
     assert air_filter.serial == "123456"
@@ -46,7 +64,11 @@ def test_set_airfilter(air_filter):
 
 def test_model_name_AF1_or_fan(air_filter):
     # Arrange
-    air_filter.connected = True  # AF1 or fan need to be connected state to show name
+    subscribe(
+        air_filter._event_bus,
+        MrBeamEvents.AIRFILTER_CHANGED,
+        lambda: setattr(air_filter, "connected", True),
+    )  # AF1 or fan need to be connected state to show name
     # Act
     model_name = air_filter.model
     # Assert
@@ -55,8 +77,8 @@ def test_model_name_AF1_or_fan(air_filter):
 
 def test_model_name_AF2(air_filter):
     # Arrange
-    for i in range(2, 8):
-        air_filter.set_airfilter(i, "serial")
+    for i in range(2, 5):
+        set_airfilter(air_filter, i, "serial")
         # Act
         model_name = air_filter.model
         # Assert
@@ -65,7 +87,7 @@ def test_model_name_AF2(air_filter):
 
 def test_model_name_AF3(air_filter):
     # Arrange
-    air_filter.set_airfilter(8, "serial")
+    set_airfilter(air_filter, 8, "serial")
     # Act
     model_name = air_filter.model
     # Assert
@@ -81,7 +103,7 @@ def test_model_name_invalid_model_id(air_filter):
     assert model_name == "Unknown"
 
     # Arrange
-    air_filter.set_airfilter(100, "serial")
+    set_airfilter(air_filter, 100, "serial")
     # Act
     model_name = air_filter.model
     # Assert
@@ -100,7 +122,7 @@ def test_set_airfilter_when_information_is_missing(model_id, serial, air_filter)
     # Arrange
 
     # Act
-    air_filter.set_airfilter(model_id, serial)
+    set_airfilter(air_filter, model_id, serial)
     # Assert
     assert air_filter.model_id is None
     assert air_filter.serial is None
@@ -207,7 +229,7 @@ def test_temperatures_string_value(air_filter):
 
 def test_profile_for_airfilter_1(air_filter):
     # Arrange
-    air_filter.set_airfilter(1, "serial")
+    set_airfilter(air_filter, 1, "serial")
 
     # Act
     profile = air_filter.profile
@@ -235,7 +257,7 @@ def test_profile_for_airfilter_1(air_filter):
 
 def test_profile_for_airfilter_8(air_filter):
     # Arrange
-    air_filter.set_airfilter(8, "serial")
+    set_airfilter(air_filter, 8, "serial")
 
     # Act
     profile = air_filter.profile
@@ -272,7 +294,7 @@ def test_get_profile_invalid_id(air_filter):
 
 def test_get_profile_none_existing_id(air_filter):
     # Arrange
-    air_filter.set_airfilter(100, "serial")
+    set_airfilter(air_filter, 100, "serial")
 
     # Act
     profile = air_filter.profile
@@ -294,7 +316,7 @@ def test_get_profile_for_none_id(air_filter):
 
 def test_get_lifespan_for_airfilter_1_carbonfilter(air_filter):
     # Arrange
-    air_filter.set_airfilter(1, "serial")
+    set_airfilter(air_filter, 1, "serial")
 
     # Act
     lifespan = air_filter.get_lifespan("carbonfilter")
@@ -317,7 +339,7 @@ def test_get_lifespan_for_airfilter_1_carbonfilter(air_filter):
 )
 def test_get_lifespan_for_prefilter(model_id, expected_lifespan, air_filter):
     # Arrange
-    air_filter.set_airfilter(model_id, "serial")
+    set_airfilter(air_filter, model_id, "serial")
 
     # Act
     lifespan = air_filter.get_lifespan("prefilter")
@@ -342,7 +364,7 @@ def test_get_lifespans_when_filterstage_is_prefilter_and_heavy_duty_prefilter_is
     model_id, expected_lifespan, air_filter
 ):
     # Arrange
-    air_filter.set_airfilter(model_id, "serial")
+    set_airfilter(air_filter, model_id, "serial")
     air_filter.heavy_duty_prefilter_enabled = MagicMock(return_value=True)
 
     # Act
@@ -354,7 +376,7 @@ def test_get_lifespans_when_filterstage_is_prefilter_and_heavy_duty_prefilter_is
 
 def test_get_lifespan_for_invalid_filter(air_filter):
     # Arrange
-    air_filter.set_airfilter(1, "serial")
+    set_airfilter(air_filter, 1, "serial")
 
     # Act
     lifespan = air_filter.get_lifespan("invalidfilter")
@@ -376,7 +398,7 @@ def test_get_lifespan_for_invalid_model(air_filter):
 
 def test_get_lifespan_for_invalid_filter_stage_id(air_filter):
     # Arrange
-    air_filter.set_airfilter(1, "serial")
+    set_airfilter(air_filter, 1, "serial")
 
     # Act
     lifespan = air_filter.get_lifespan("prefilter", 20)
@@ -387,7 +409,7 @@ def test_get_lifespan_for_invalid_filter_stage_id(air_filter):
 
 def test_get_lifespan_for_invalid_filter_stage_id_input(air_filter):
     # Arrange
-    air_filter.set_airfilter(1, "serial")
+    set_airfilter(air_filter, 1, "serial")
 
     # Act
     lifespan = air_filter.get_lifespan("prefilter", "invalid")
@@ -398,7 +420,7 @@ def test_get_lifespan_for_invalid_filter_stage_id_input(air_filter):
 
 def test_get_list_of_lifespans_for_prefilter(air_filter, mrbeam_plugin):
     # Arrange
-    air_filter.set_airfilter(1, "serial")
+    set_airfilter(air_filter, 1, "serial")
 
     # Act
     lifespan = air_filter.get_lifespans("prefilter")
@@ -408,7 +430,7 @@ def test_get_list_of_lifespans_for_prefilter(air_filter, mrbeam_plugin):
 
     # Arrange
     air_filter = AirFilter(mrbeam_plugin)
-    air_filter.set_airfilter(8, "serial")
+    set_airfilter(air_filter, 8, "serial")
 
     # Act
     lifespan = air_filter.get_lifespans("prefilter")
@@ -419,7 +441,7 @@ def test_get_list_of_lifespans_for_prefilter(air_filter, mrbeam_plugin):
 
 def test_get_list_of_lifespans_for_carbonfilter(air_filter, mrbeam_plugin):
     # Arrange
-    air_filter.set_airfilter(1, "serial")
+    set_airfilter(air_filter, 1, "serial")
 
     # Act
     lifespan = air_filter.get_lifespans("carbonfilter")
@@ -429,7 +451,7 @@ def test_get_list_of_lifespans_for_carbonfilter(air_filter, mrbeam_plugin):
 
     # Arrange
     air_filter = AirFilter(mrbeam_plugin)
-    air_filter.set_airfilter(8, "serial")
+    set_airfilter(air_filter, 8, "serial")
 
     # Act
     lifespan = air_filter.get_lifespans("carbonfilter")
@@ -451,7 +473,7 @@ def test_get_list_of_lifespans_profile_none(air_filter):
 
 def test_get_shopify_links_AF1_prefilter(air_filter):
     # Arrange
-    air_filter.set_airfilter(1, "serial")
+    set_airfilter(air_filter, 1, "serial")
 
     # Act
     shopify_link = air_filter.get_shopify_links("prefilter")
@@ -479,7 +501,7 @@ def test_get_shopify_links_when_no_link_is_set_in_profile_then_return_empty_list
     air_filter,
 ):
     # Arrange
-    air_filter.set_airfilter(8, "serial")
+    set_airfilter(air_filter, 8, "serial")
     air_filter._profile = {"prefilter_stages": 1}
 
     # Act
@@ -499,7 +521,7 @@ def test_get_shopify_links_when_no_link_is_set_in_profile_then_return_empty_list
 def test_heavy_duty_prefilter_enabled_when_enabled_then_true(enabled, air_filter):
     # Arrange
     air_filter._plugin.is_heavy_duty_prefilter_enabled = MagicMock(return_value=enabled)
-    air_filter.set_airfilter(8, "serial")
+    set_airfilter(air_filter, 8, "serial")
 
     # Act
     heavy_duty_prefilter_enabled = air_filter.heavy_duty_prefilter_enabled()
@@ -517,7 +539,7 @@ def test_heavy_duty_prefilter_enabled_when_enabled_then_true(enabled, air_filter
 )
 def test_pressure_drop_prefilter(model_id, expected_pressure_drop, air_filter):
     # Arrange
-    air_filter.set_airfilter(model_id, "serial")
+    set_airfilter(air_filter, model_id, "serial")
     air_filter.set_pressure(pressure1=900, pressure2=800, pressure3=700, pressure4=600)
 
     # Act
@@ -536,7 +558,7 @@ def test_pressure_drop_prefilter(model_id, expected_pressure_drop, air_filter):
 )
 def test_pressure_drop_main_filter(model_id, expected_pressure_drop, air_filter):
     # Arrange
-    air_filter.set_airfilter(model_id, "serial")
+    set_airfilter(air_filter, model_id, "serial")
     air_filter.set_pressure(pressure1=900, pressure2=800, pressure3=700, pressure4=600)
 
     # Act
@@ -570,7 +592,7 @@ def test_get_last_pressure_values(air_filter):
 
 def test_set_pressure_af2(air_filter):
     # Arrange
-    air_filter.set_airfilter(2, "serial")
+    set_airfilter(air_filter, 2, "serial")
 
     # Act
     air_filter.set_pressure(pressure=900)
@@ -594,7 +616,7 @@ def test_exhaust_hose_is_blocked_if_af3(
     model_id, pressure, expected_blocked, air_filter
 ):
     # Arrange
-    air_filter.set_airfilter(model_id, "serial")
+    set_airfilter(air_filter, model_id, "serial")
     air_filter.set_pressure(pressure, pressure, pressure, pressure)
 
     # Act
@@ -605,34 +627,98 @@ def test_exhaust_hose_is_blocked_if_af3(
 
 
 @pytest.mark.parametrize(
-    "connected",
+    "connected,event",
     [
-        True,
-        False,
+        (True, IoBeamEvents.FAN_CONNECTED),
+        (False, IoBeamEvents.FAN_DISCONNECTED),
     ],
 )
-def test_set_connected(connected, air_filter):
+def test_set_connected__when__af3__and__external_power(connected, event, air_filter):
     # Arrange
-    air_filter.set_airfilter(8, "serial")
+    set_airfilter(air_filter, 8, "serial")
+
     # Act
-    air_filter.connected = connected
+    subscribe(
+        air_filter._event_bus,
+        event,
+        lambda: setattr(air_filter, "connected", connected),
+    )
+
+    air_filter.set_device(
+        exhaust.Device.from_dict({"ext_power": True, "ext_voltage": 24.0})
+    )
 
     # Assert
     assert air_filter.connected == connected
 
 
 @pytest.mark.parametrize(
-    "connected",
+    "connected,event",
     [
-        True,
-        False,
+        (True, IoBeamEvents.FAN_CONNECTED),
+        (False, IoBeamEvents.FAN_DISCONNECTED),
     ],
 )
-def test_set_connected__when__non_smart_af(connected, air_filter):
+def test_connected_when__af3__and__no_external_power(connected, event, air_filter):
     # Arrange
-    air_filter.set_airfilter(None, None)
+    set_airfilter(air_filter, 8, "serial")
+
     # Act
-    air_filter.connected = connected
+    subscribe(
+        air_filter._event_bus,
+        event,
+        lambda: setattr(air_filter, "connected", connected),
+    )
+
+    air_filter.set_device(
+        exhaust.Device.from_dict({"ext_power": False, "ext_voltage": 24.0})
+    )
+
+    # Assert
+    assert air_filter.connected == False
+
+
+@pytest.mark.parametrize(
+    "connected,event",
+    [
+        (True, MrBeamEvents.AIRFILTER_CHANGED),
+        (False, IoBeamEvents.FAN_DISCONNECTED),
+    ],
+)
+def test_set_connected__when__non_smart_af(connected, event, air_filter):
+    # Arrange
+    set_airfilter(air_filter, None, None)
+
+    # Act
+    subscribe(
+        air_filter._event_bus,
+        event,
+        lambda: setattr(air_filter, "connected", connected),
+    )
 
     # Assert
     assert air_filter.connected == connected
+
+
+def test_reset_of_exhaust__when__af3__and__ext_power_is_connected(air_filter):
+    # Arrange
+    set_airfilter(air_filter, 8, "serial")
+    air_filter.set_device(
+        exhaust.Device.from_dict(
+            {"ext_power": False, "ext_voltage": 24.0, "serial_num": 0}
+        )
+    )
+
+    with patch.object(air_filter._iobeam, "reset_exhaust") as reset_exhaust:
+        # Act
+        air_filter.set_device(
+            exhaust.Device.from_dict(
+                {"ext_power": True, "ext_voltage": 24.0, "serial_num": 0}
+            )
+        )
+
+        # Assert
+        # assert self._iobeam.reset_exhaust() is called
+        print("iobeam", air_filter._iobeam)
+        print("reset_exhaust", reset_exhaust)
+        reset_exhaust.assert_called_once()
diff --git a/tests/iobeam/test_dust_manager.py b/tests/iobeam/test_dust_manager.py
index 8c5d5f0d8..ddc112cd2 100644
--- a/tests/iobeam/test_dust_manager.py
+++ b/tests/iobeam/test_dust_manager.py
@@ -8,7 +8,7 @@
 from octoprint_mrbeam.iobeam.dust_manager import DustManager
 from octoprint.events import Events as OctoPrintEvents
 
-from tests.conftest import wait_till_event_received
+from tests.conftest import subscribe
 
 
 class DustManagerMock(DustManager):
@@ -22,10 +22,13 @@ def dust_manager(mrbeam_plugin, monkeypatch, air_filter):
     dust_manager._one_button_handler = MagicMock()
     dust_manager._analytics_handler = MagicMock()
     dust_manager._airfilter = air_filter
-    dust_manager._event_bus.fire(MrBeamEvents.MRB_PLUGIN_INITIALIZED)
-    wait_till_event_received(
-        dust_manager._event_bus, MrBeamEvents.MRB_PLUGIN_INITIALIZED
+    subscribe(
+        dust_manager._event_bus,
+        MrBeamEvents.MRB_PLUGIN_INITIALIZED,
+        dust_manager._event_bus.fire,
+        MrBeamEvents.MRB_PLUGIN_INITIALIZED,
     )
+
     dust_manager._iobeam.send_fan_command = MagicMock(return_value=(True, None))
     return dust_manager
 
@@ -106,8 +109,12 @@ def test_if_test_fan_rpm_was_triggered_when_job_was_started(dust_manager):
     dust_manager._handle_fan_data({"rpm": 40, "dust": 1, "state": 1, "connected": True})
 
     # Act
-    dust_manager._event_bus.fire(OctoPrintEvents.PRINT_STARTED)
-    wait_till_event_received(dust_manager._event_bus, OctoPrintEvents.PRINT_STARTED)
+    subscribe(
+        dust_manager._event_bus,
+        OctoPrintEvents.PRINT_STARTED,
+        dust_manager._event_bus.fire,
+        OctoPrintEvents.PRINT_STARTED,
+    )
     time.sleep(0.1)  # wait till test fan rom finishes
 
     # Assert
@@ -127,7 +134,12 @@ def test_if_test_fan_rpm_was_extended_when_rpm_diff_is_to_high(dust_manager):
 
     # Act
     dust_manager._event_bus.fire(OctoPrintEvents.PRINT_STARTED)
-    wait_till_event_received(dust_manager._event_bus, OctoPrintEvents.PRINT_STARTED)
+    subscribe(
+        dust_manager._event_bus,
+        OctoPrintEvents.PRINT_STARTED,
+        dust_manager._event_bus.fire,
+        OctoPrintEvents.PRINT_STARTED,
+    )
     time.sleep(0.1)  # wait till test fan rom finishes
 
     # Assert
@@ -143,12 +155,19 @@ def test_if_test_fan_rpm_was_triggered_when_it_didnt_run_for_a_while(
     dust_manager._handle_fan_data({"rpm": 40, "dust": 1, "state": 1, "connected": True})
 
     # Act
-    dust_manager._event_bus.fire(OctoPrintEvents.PRINT_STARTED)
-    wait_till_event_received(dust_manager._event_bus, OctoPrintEvents.PRINT_STARTED)
+    subscribe(
+        dust_manager._event_bus,
+        OctoPrintEvents.PRINT_STARTED,
+        dust_manager._event_bus.fire,
+        OctoPrintEvents.PRINT_STARTED,
+    )
     time.sleep(0.1)  # wait till test fan rom finishes
-    print("now")
-    dust_manager._event_bus.fire(MrBeamEvents.PRINT_PROGRESS)
-    wait_till_event_received(dust_manager._event_bus, MrBeamEvents.PRINT_PROGRESS)
+    subscribe(
+        dust_manager._event_bus,
+        MrBeamEvents.PRINT_PROGRESS,
+        dust_manager._event_bus.fire,
+        MrBeamEvents.PRINT_PROGRESS,
+    )
     time.sleep(0.1)  # wait till test fan rom finishes
 
     # Assert
@@ -168,8 +187,12 @@ def test_when__exhaust_hose_is_blocked__then__show_malfunction(dust_manager):
     with patch.object(
         dust_manager._plugin.hw_malfunction_handler, "report_hw_malfunction"
     ) as mock_report_hw_malfunction:
-        dust_manager._event_bus.fire(OctoPrintEvents.PRINT_STARTED)
-        wait_till_event_received(dust_manager._event_bus, OctoPrintEvents.PRINT_STARTED)
+        subscribe(
+            dust_manager._event_bus,
+            OctoPrintEvents.PRINT_STARTED,
+            dust_manager._event_bus.fire,
+            OctoPrintEvents.PRINT_STARTED,
+        )
         time.sleep(0.1)  # wait till test fan rom finishes
 
         # Assert
diff --git a/tests/model/text_exhaust.py b/tests/model/text_exhaust.py
new file mode 100644
index 000000000..54ce99121
--- /dev/null
+++ b/tests/model/text_exhaust.py
@@ -0,0 +1,11 @@
+import pytest
+
+from octoprint_mrbeam.model.iobeam.exhaust import (
+    ExhaustModelInitializationError,
+    Device,
+)
+
+
+def test_exhaust_device__when__wrong_input__then__exception():
+    with pytest.raises(ExhaustModelInitializationError):
+        Device.from_dict({})
diff --git a/translations/messages.pot b/translations/messages.pot
index e7cd58a9e..33f642d0c 100644
--- a/translations/messages.pot
+++ b/translations/messages.pot
@@ -8,7 +8,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: PROJECT VERSION\n"
 "Report-Msgid-Bugs-To: EMAIL@ADDRESS\n"
-"POT-Creation-Date: 2023-08-16 11:15+0200\n"
+"POT-Creation-Date: 2023-10-19 12:12+0200\n"
 "PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
 "Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
 "Language-Team: LANGUAGE <LL@li.org>\n"
@@ -17,63 +17,63 @@ msgstr ""
 "Content-Transfer-Encoding: 8bit\n"
 "Generated-By: Babel 2.9.1\n"
 
-#: octoprint_mrbeam/__init__.py:974
+#: octoprint_mrbeam/__init__.py:1042
 #: octoprint_mrbeam/static/js/app/view-models/mother.js:731
 #: octoprint_mrbeam/static/js/app/view-models/mother.js:742
 #: octoprint_mrbeam/templates/settings/file_settings.jinja2:2
 msgid "Files"
 msgstr ""
 
-#: octoprint_mrbeam/__init__.py:981
+#: octoprint_mrbeam/__init__.py:1049
 #: octoprint_mrbeam/templates/settings/camera_settings.jinja2:4
 msgid "Camera"
 msgstr ""
 
-#: octoprint_mrbeam/__init__.py:988
+#: octoprint_mrbeam/__init__.py:1056
 #: octoprint_mrbeam/templates/settings/backlash_settings.jinja2:2
 msgid "Precision Calibration"
 msgstr ""
 
-#: octoprint_mrbeam/__init__.py:995
+#: octoprint_mrbeam/__init__.py:1063
 #: octoprint_mrbeam/templates/calibration/watterott/calibration_tool.jinja2:56
 #: octoprint_mrbeam/templates/settings/debug_settings.jinja2:5
 msgid "Debug"
 msgstr ""
 
-#: octoprint_mrbeam/__init__.py:1002
+#: octoprint_mrbeam/__init__.py:1070
 #: octoprint_mrbeam/templates/settings/about_settings.jinja2:2
 msgid "About This Mr Beam"
 msgstr ""
 
-#: octoprint_mrbeam/__init__.py:1009
+#: octoprint_mrbeam/__init__.py:1077
 msgid "Better Together"
 msgstr ""
 
-#: octoprint_mrbeam/__init__.py:1016
+#: octoprint_mrbeam/__init__.py:1084
 #: octoprint_mrbeam/templates/settings/reminders_settings.jinja2:2
 msgid "Reminders"
 msgstr ""
 
-#: octoprint_mrbeam/__init__.py:1023
+#: octoprint_mrbeam/__init__.py:1091
 #: octoprint_mrbeam/templates/settings/maintenance_settings.jinja2:2
 msgid "Maintenance"
 msgstr ""
 
-#: octoprint_mrbeam/__init__.py:1030
+#: octoprint_mrbeam/__init__.py:1098
 #: octoprint_mrbeam/templates/settings/leds_settings.jinja2:2
 msgid "Mr Beam Lights"
 msgstr ""
 
-#: octoprint_mrbeam/__init__.py:1037
+#: octoprint_mrbeam/__init__.py:1105
 #: octoprint_mrbeam/templates/settings/custom_material_settings.jinja2:2
 msgid "Custom Material Settings"
 msgstr ""
 
-#: octoprint_mrbeam/__init__.py:2456
+#: octoprint_mrbeam/__init__.py:2537
 msgid "A new picture is being taken, please wait a little..."
 msgstr ""
 
-#: octoprint_mrbeam/__init__.py:2461
+#: octoprint_mrbeam/__init__.py:2542
 msgid "Either the camera is busy or the lid is not open."
 msgstr ""
 
@@ -120,6 +120,10 @@ msgstr ""
 msgid "...and more!"
 msgstr ""
 
+#: octoprint_mrbeam/iobeam/airfilter.py:652
+msgid "https://www.mr-beam.org/en/"
+msgstr ""
+
 #: octoprint_mrbeam/printing/comm_acc2.py:428
 #: octoprint_mrbeam/printing/comm_acc2.py:487
 msgid "Please contact Mr Beam support team and attach octoprint.log."
@@ -275,42 +279,42 @@ msgstr ""
 msgid "Unable to start conversion because a parameter is missing."
 msgstr ""
 
-#: octoprint_mrbeam/static/js/app/view-models/convert.js:2193
+#: octoprint_mrbeam/static/js/app/view-models/convert.js:2194
 msgid ""
 "To free up some disk space you may want to perform one or all of the "
 "following suggestions:"
 msgstr ""
 
-#: octoprint_mrbeam/static/js/app/view-models/convert.js:2199
+#: octoprint_mrbeam/static/js/app/view-models/convert.js:2200
 msgid ""
 "Delete GCode files: Go to design library and click 'Only show GCode "
 "files' on the left. Here you can delete files from the according context "
 "menu."
 msgstr ""
 
-#: octoprint_mrbeam/static/js/app/view-models/convert.js:2205
+#: octoprint_mrbeam/static/js/app/view-models/convert.js:2206
 msgid ""
 "Delete design files: Go to design library and click 'Only show design "
 "files' on the left. Here you can delete files from the according context "
 "menu."
 msgstr ""
 
-#: octoprint_mrbeam/static/js/app/view-models/convert.js:2211
+#: octoprint_mrbeam/static/js/app/view-models/convert.js:2212
 msgid ""
 "Delete log files: Go to Settings -> logs and delete old log files per "
 "click on the trash bin icon."
 msgstr ""
 
-#: octoprint_mrbeam/static/js/app/view-models/convert.js:2217
+#: octoprint_mrbeam/static/js/app/view-models/convert.js:2218
 #, python-format
 msgid "Find more details %(open)sonline%(close)s."
 msgstr ""
 
-#: octoprint_mrbeam/static/js/app/view-models/convert.js:2224
+#: octoprint_mrbeam/static/js/app/view-models/convert.js:2225
 msgid "Get more free disk space"
 msgstr ""
 
-#: octoprint_mrbeam/static/js/app/view-models/convert.js:2497
+#: octoprint_mrbeam/static/js/app/view-models/convert.js:2498
 #: octoprint_mrbeam/templates/conversion_dialog.jinja2:515
 msgid "Cut "
 msgstr ""
@@ -340,7 +344,7 @@ msgid "Do you still want to cancel?"
 msgstr ""
 
 #: octoprint_mrbeam/static/js/app/view-models/mother.js:64
-#: octoprint_mrbeam/templates/settings/maintenance_settings.jinja2:168
+#: octoprint_mrbeam/templates/settings/maintenance_settings.jinja2:225
 msgid "No"
 msgstr ""
 
@@ -350,7 +354,7 @@ msgstr ""
 #: octoprint_mrbeam/templates/calibration/watterott/tab_camera_alignment.jinja2:42
 #: octoprint_mrbeam/templates/calibration/watterott/tab_corner_calibration.jinja2:71
 #: octoprint_mrbeam/templates/calibration/watterott/tab_lens_calibration.jinja2:110
-#: octoprint_mrbeam/templates/settings/maintenance_settings.jinja2:169
+#: octoprint_mrbeam/templates/settings/maintenance_settings.jinja2:226
 msgid "Yes"
 msgstr ""
 
@@ -425,42 +429,42 @@ msgstr ""
 msgid "Please confirm to proceed."
 msgstr ""
 
-#: octoprint_mrbeam/static/js/app/view-models/mrbeam.js:238
+#: octoprint_mrbeam/static/js/app/view-models/mrbeam.js:244
 #: octoprint_mrbeam/static/js/app/view-models/wizard/wizard-acl.js:178
 #: octoprint_mrbeam/templates/wizard/wizard_acl.jinja2:23
 msgid "Invalid e-mail address"
 msgstr ""
 
-#: octoprint_mrbeam/static/js/app/view-models/mrbeam.js:300
+#: octoprint_mrbeam/static/js/app/view-models/mrbeam.js:306
 #: octoprint_mrbeam/templates/loginscreen_viewmodel.jinja2:20
 #: octoprint_mrbeam/templates/loginscreen_viewmodel.jinja2:22
 #: octoprint_mrbeam/templates/wizard/wizard_acl.jinja2:21
 msgid "E-mail address"
 msgstr ""
 
-#: octoprint_mrbeam/static/js/app/view-models/mrbeam.js:499
-#: octoprint_mrbeam/static/js/app/view-models/mrbeam.js:513
-#: octoprint_mrbeam/static/js/app/view-models/mrbeam.js:524
+#: octoprint_mrbeam/static/js/app/view-models/mrbeam.js:505
+#: octoprint_mrbeam/static/js/app/view-models/mrbeam.js:519
+#: octoprint_mrbeam/static/js/app/view-models/mrbeam.js:530
 msgid "Session expired"
 msgstr ""
 
-#: octoprint_mrbeam/static/js/app/view-models/mrbeam.js:500
+#: octoprint_mrbeam/static/js/app/view-models/mrbeam.js:506
 msgid "Trying to do a re-login..."
 msgstr ""
 
-#: octoprint_mrbeam/static/js/app/view-models/mrbeam.js:514
+#: octoprint_mrbeam/static/js/app/view-models/mrbeam.js:520
 msgid "Re-login successful.<br/>Please repeat the last action."
 msgstr ""
 
-#: octoprint_mrbeam/static/js/app/view-models/mrbeam.js:525
+#: octoprint_mrbeam/static/js/app/view-models/mrbeam.js:531
 msgid "Please login again."
 msgstr ""
 
-#: octoprint_mrbeam/static/js/app/view-models/mrbeam.js:582
+#: octoprint_mrbeam/static/js/app/view-models/mrbeam.js:588
 msgid "Browser not supported."
 msgstr ""
 
-#: octoprint_mrbeam/static/js/app/view-models/mrbeam.js:584
+#: octoprint_mrbeam/static/js/app/view-models/mrbeam.js:590
 #, python-format
 msgid ""
 "Mr Beam makes use of latest web technologies which might not be fully "
@@ -468,11 +472,11 @@ msgid ""
 "of%(br)s%(open)sGoogle Chrome%(close)s for Mr Beam."
 msgstr ""
 
-#: octoprint_mrbeam/static/js/app/view-models/mrbeam.js:605
+#: octoprint_mrbeam/static/js/app/view-models/mrbeam.js:611
 msgid "Beta user: Please consider enabling Mr Beam Better Together!"
 msgstr ""
 
-#: octoprint_mrbeam/static/js/app/view-models/mrbeam.js:609
+#: octoprint_mrbeam/static/js/app/view-models/mrbeam.js:615
 #, python-format
 msgid ""
 "As you are currently in our Beta channel, you would help us tremendously "
@@ -481,11 +485,11 @@ msgid ""
 "Better Together settings%(close)s"
 msgstr ""
 
-#: octoprint_mrbeam/static/js/app/view-models/review.js:236
+#: octoprint_mrbeam/static/js/app/view-models/review.js:245
 msgid "Error while saving review!"
 msgstr ""
 
-#: octoprint_mrbeam/static/js/app/view-models/review.js:238
+#: octoprint_mrbeam/static/js/app/view-models/review.js:247
 #, python-format
 msgid ""
 "Unable to save your review at the moment.%(br)sCheck connection to Mr "
@@ -795,12 +799,13 @@ msgstr ""
 
 #: octoprint_mrbeam/static/js/app/view-models/user-notification.js:19
 #: octoprint_mrbeam/static/js/app/view-models/user-notification.js:58
-#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:76
-#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:94
-#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:125
-#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:158
-#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:208
-#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:352
+#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:77
+#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:96
+#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:129
+#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:164
+#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:215
+#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:281
+#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:380
 #: octoprint_mrbeam/templates/calibration/user/view_corner_calibration.jinja2:16
 #: octoprint_mrbeam/templates/laserhead_changed.jinja2:25
 #: octoprint_mrbeam/templates/laserhead_changed.jinja2:41
@@ -828,11 +833,11 @@ msgid ""
 "support ticket%(closing_tag_support)s."
 msgstr ""
 
-#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:66
+#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:67
 msgid "Bottom plate not detected"
 msgstr ""
 
-#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:68
+#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:69
 #, python-format
 msgid ""
 "The device is currently not able to start any laser job.\n"
@@ -844,13 +849,13 @@ msgid ""
 "support ticket%(closing_tag_support)s."
 msgstr ""
 
-#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:84
-#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:232
-#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:247
+#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:86
+#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:240
+#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:256
 msgid "Hardware malfunction"
 msgstr ""
 
-#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:86
+#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:88
 #, python-format
 msgid ""
 "The device is currently not able to start any laser job.\n"
@@ -862,11 +867,11 @@ msgid ""
 "support ticket%(closing_tag_support)s."
 msgstr ""
 
-#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:102
+#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:105
 msgid "Unknown malfunction"
 msgstr ""
 
-#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:104
+#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:107
 #, python-format
 msgid ""
 "The device is properly currently not able to start any laser job.\n"
@@ -875,11 +880,11 @@ msgid ""
 "ticket%(closing_tag_support)s."
 msgstr ""
 
-#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:115
+#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:119
 msgid "Compressor malfunction"
 msgstr ""
 
-#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:117
+#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:121
 #, python-format
 msgid ""
 "The device is currently not able to start any laser job.\n"
@@ -892,11 +897,11 @@ msgid ""
 "support ticket%(closing_tag_support)s."
 msgstr ""
 
-#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:133
+#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:138
 msgid "One Button malfunction"
 msgstr ""
 
-#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:135
+#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:140
 #, python-format
 msgid ""
 "The device is currently not able to start any laser job.\n"
@@ -907,11 +912,11 @@ msgid ""
 "ticket%(closing_tag_support)s."
 msgstr ""
 
-#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:148
+#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:154
 msgid "Interlock malfunction"
 msgstr ""
 
-#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:150
+#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:156
 #, python-format
 msgid ""
 "The device is currently not able to start any laser job.\n"
@@ -923,44 +928,44 @@ msgid ""
 "support ticket%(closing_tag_support)s."
 msgstr ""
 
-#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:166
+#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:173
 msgid "Camera busy"
 msgstr ""
 
-#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:167
+#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:174
 msgid "The camera was stopped recently, it will take a few seconds to restart."
 msgstr ""
 
-#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:174
+#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:181
 msgid "No update information"
 msgstr ""
 
-#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:175
+#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:182
 msgid ""
 "No information about available updates could be retrieved, please try "
 "again later. Errorcode: E-1000"
 msgstr ""
 
-#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:182
-#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:190
+#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:189
+#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:197
 msgid "Error during fetching update information"
 msgstr ""
 
-#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:183
+#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:190
 msgid "There was a error during fetching the update information Errorcode: E-1001"
 msgstr ""
 
-#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:191
+#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:198
 msgid ""
 "There was a error during fetching the update information, please try "
 "again later."
 msgstr ""
 
-#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:198
+#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:205
 msgid "Camera malfunction"
 msgstr ""
 
-#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:200
+#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:207
 #, python-format
 msgid ""
 "You can still use the device by aligning manually without camera support."
@@ -972,11 +977,11 @@ msgid ""
 "support ticket%(closing_tag_support)s."
 msgstr ""
 
-#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:216
+#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:224
 msgid "Laser job canceled"
 msgstr ""
 
-#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:218
+#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:226
 #, python-format
 msgid ""
 "The job was canceled due to an error - we apologize for any "
@@ -988,7 +993,7 @@ msgid ""
 "support ticket%(closing_tag_support)s."
 msgstr ""
 
-#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:234
+#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:242
 #, python-format
 msgid ""
 "The device is currently not able to start any laser job.\n"
@@ -999,7 +1004,7 @@ msgid ""
 "support ticket%(closing_tag_support)s."
 msgstr ""
 
-#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:249
+#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:258
 #, python-format
 msgid ""
 "Your Air Filter or single Fan is not spinning properly.\n"
@@ -1010,41 +1015,56 @@ msgid ""
 "ticket%(closing_tag_support)s."
 msgstr ""
 
-#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:262
+#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:272
+msgid "Check Air Filter System hose"
+msgstr ""
+
+#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:274
+#, python-format
+msgid ""
+"The hose of your Air Filter System might be blocked or is clogged.\n"
+"Please check the hose by following the %(opening_tag)sKnowledgebase "
+"article%(closing_tag)s.\n"
+"\n"
+"If this doesn’t solve the problem, please %(opening_tag_support)sopen a "
+"support ticket%(closing_tag_support)s."
+msgstr ""
+
+#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:290
 msgid "Thank you"
 msgstr ""
 
-#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:263
+#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:291
 msgid ""
 "The last image from your camera was submitted to Mr Beam and is going to "
 "be uploaded silently in the background."
 msgstr ""
 
-#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:269
+#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:297
 msgid "Lens Calibration Over"
 msgstr ""
 
-#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:270
+#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:298
 msgid "A new lens calibration file has been created and is now being used."
 msgstr ""
 
-#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:367
+#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:395
 #, python-format
 msgid ""
 "For more information check out this %(opening_tag)sKnowledge Base "
 "article%(closing_tag)s"
 msgstr ""
 
-#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:384
+#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:412
 #, python-format
 msgid "Browse our %(opening_tag)sKnowledge Base%(closing_tag)s"
 msgstr ""
 
-#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:404
+#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:432
 msgid "Error:"
 msgstr ""
 
-#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:418
+#: octoprint_mrbeam/static/js/app/view-models/user-notification.js:446
 msgid "Error Code:"
 msgstr ""
 
@@ -1711,15 +1731,15 @@ msgid ""
 " that it is a Mr Beam Custom Material Settings backup file."
 msgstr ""
 
-#: octoprint_mrbeam/static/js/app/view-models/settings/maintenance.js:11
+#: octoprint_mrbeam/static/js/app/view-models/settings/maintenance.js:12
 msgid "pre-filter"
 msgstr ""
 
-#: octoprint_mrbeam/static/js/app/view-models/settings/maintenance.js:12
+#: octoprint_mrbeam/static/js/app/view-models/settings/maintenance.js:13
 msgid "Pre-Filter capacity reached 70%"
 msgstr ""
 
-#: octoprint_mrbeam/static/js/app/view-models/settings/maintenance.js:15
+#: octoprint_mrbeam/static/js/app/view-models/settings/maintenance.js:16
 msgid ""
 "At this level, we highly recommend having a visual check on the pre-"
 "filter to make sure the estimation is representing the fill level of your"
@@ -1727,15 +1747,15 @@ msgid ""
 "your device."
 msgstr ""
 
-#: octoprint_mrbeam/static/js/app/view-models/settings/maintenance.js:18
+#: octoprint_mrbeam/static/js/app/view-models/settings/maintenance.js:19
 msgid "main filter"
 msgstr ""
 
-#: octoprint_mrbeam/static/js/app/view-models/settings/maintenance.js:19
+#: octoprint_mrbeam/static/js/app/view-models/settings/maintenance.js:20
 msgid "Main-Filter capacity reached 70%"
 msgstr ""
 
-#: octoprint_mrbeam/static/js/app/view-models/settings/maintenance.js:22
+#: octoprint_mrbeam/static/js/app/view-models/settings/maintenance.js:23
 msgid ""
 "At this level, we highly recommend to have a visual check on the main-"
 "filter to make sure the estimation is representing the fill level of your"
@@ -1743,43 +1763,35 @@ msgid ""
 "your device."
 msgstr ""
 
-#: octoprint_mrbeam/static/js/app/view-models/settings/maintenance.js:25
+#: octoprint_mrbeam/static/js/app/view-models/settings/maintenance.js:26
 msgid "laser head"
 msgstr ""
 
-#: octoprint_mrbeam/static/js/app/view-models/settings/maintenance.js:26
+#: octoprint_mrbeam/static/js/app/view-models/settings/maintenance.js:27
 msgid "mechanics"
 msgstr ""
 
-#: octoprint_mrbeam/static/js/app/view-models/settings/maintenance.js:56
-#: octoprint_mrbeam/static/js/app/view-models/settings/maintenance.js:60
-#: octoprint_mrbeam/static/js/app/view-models/settings/maintenance.js:63
-#: octoprint_mrbeam/static/js/app/view-models/settings/maintenance.js:66
-#, python-format
-msgid "/%(lifespan)s hrs"
-msgstr ""
-
-#: octoprint_mrbeam/static/js/app/view-models/settings/maintenance.js:147
+#: octoprint_mrbeam/static/js/app/view-models/settings/maintenance.js:139
 msgid "Did you change the pre-filter?"
 msgstr ""
 
-#: octoprint_mrbeam/static/js/app/view-models/settings/maintenance.js:149
+#: octoprint_mrbeam/static/js/app/view-models/settings/maintenance.js:141
 msgid "Did you change the main filter?"
 msgstr ""
 
-#: octoprint_mrbeam/static/js/app/view-models/settings/maintenance.js:151
+#: octoprint_mrbeam/static/js/app/view-models/settings/maintenance.js:143
 msgid "Did you clean the laser head?"
 msgstr ""
 
-#: octoprint_mrbeam/static/js/app/view-models/settings/maintenance.js:153
+#: octoprint_mrbeam/static/js/app/view-models/settings/maintenance.js:145
 msgid "Did you clean the mechanics?"
 msgstr ""
 
-#: octoprint_mrbeam/static/js/app/view-models/settings/maintenance.js:444
+#: octoprint_mrbeam/static/js/app/view-models/settings/maintenance.js:420
 msgid "Maintenance required"
 msgstr ""
 
-#: octoprint_mrbeam/static/js/app/view-models/settings/maintenance.js:446
+#: octoprint_mrbeam/static/js/app/view-models/settings/maintenance.js:422
 #, python-format
 msgid ""
 "Regular maintenance on your Mr Beam is due.%(br)s Please check the "
@@ -3866,7 +3878,7 @@ msgstr ""
 msgid "Mr Beam Lasers will not publish the image nor sell it to third parties."
 msgstr ""
 
-#: octoprint_mrbeam/templates/settings/about_settings.jinja2:86
+#: octoprint_mrbeam/templates/settings/about_settings.jinja2:97
 #: octoprint_mrbeam/templates/tab_workingarea.jinja2:226
 msgid "/plugin/mrbeam/static/docs/MrBeamAnalytics-PrivacyPolicy_en.pdf"
 msgstr ""
@@ -4200,7 +4212,7 @@ msgstr ""
 #: octoprint_mrbeam/templates/calibration/user/view_corner_calibration.jinja2:37
 msgid ""
 "Wait until the engraving is finished and Mr Beam Status Lights are green."
-" Open the safety lid again and be carefult NOT to touch the engraved "
+" Open the safety lid again and be careful NOT to touch the engraved "
 "material. The camera will now take a picture of the engraving."
 msgstr ""
 
@@ -4525,107 +4537,109 @@ msgid "Laser head"
 msgstr ""
 
 #: octoprint_mrbeam/templates/settings/about_settings.jinja2:22
+#: octoprint_mrbeam/templates/settings/about_settings.jinja2:31
 msgid "Model"
 msgstr ""
 
 #: octoprint_mrbeam/templates/settings/about_settings.jinja2:28
+msgid "Air Filter System"
+msgstr ""
+
+#: octoprint_mrbeam/templates/settings/about_settings.jinja2:36
 msgid "Network interfaces"
 msgstr ""
 
-#: octoprint_mrbeam/templates/settings/about_settings.jinja2:44
+#: octoprint_mrbeam/templates/settings/about_settings.jinja2:52
 msgid "Mr Beam Plugin"
 msgstr ""
 
-#: octoprint_mrbeam/templates/settings/about_settings.jinja2:46
+#: octoprint_mrbeam/templates/settings/about_settings.jinja2:54
 msgid "Image fingerprint"
 msgstr ""
 
-#: octoprint_mrbeam/templates/settings/about_settings.jinja2:47
+#: octoprint_mrbeam/templates/settings/about_settings.jinja2:55
 msgid "Software channel"
 msgstr ""
 
-#: octoprint_mrbeam/templates/settings/about_settings.jinja2:48
+#: octoprint_mrbeam/templates/settings/about_settings.jinja2:56
 msgid "Environment"
 msgstr ""
 
-#: octoprint_mrbeam/templates/settings/about_settings.jinja2:49
+#: octoprint_mrbeam/templates/settings/about_settings.jinja2:57
 msgid "grbl"
 msgstr ""
 
-#: octoprint_mrbeam/templates/settings/about_settings.jinja2:67
+#: octoprint_mrbeam/templates/settings/about_settings.jinja2:78
 msgid "Documentation, Support and Privacy"
 msgstr ""
 
-#: octoprint_mrbeam/templates/settings/about_settings.jinja2:77
+#: octoprint_mrbeam/templates/settings/about_settings.jinja2:88
 msgid "get the latest versions"
 msgstr ""
 
-#: octoprint_mrbeam/templates/settings/about_settings.jinja2:77
+#: octoprint_mrbeam/templates/settings/about_settings.jinja2:88
 msgid "online"
 msgstr ""
 
-#: octoprint_mrbeam/templates/settings/about_settings.jinja2:82
+#: octoprint_mrbeam/templates/settings/about_settings.jinja2:93
 msgid "Online Support Portal"
 msgstr ""
 
-#: octoprint_mrbeam/templates/settings/about_settings.jinja2:83
+#: octoprint_mrbeam/templates/settings/about_settings.jinja2:94
 msgid "Privacy Policies"
 msgstr ""
 
-#: octoprint_mrbeam/templates/settings/about_settings.jinja2:84
-#: octoprint_mrbeam/templates/settings/maintenance_settings.jinja2:27
-#: octoprint_mrbeam/templates/settings/maintenance_settings.jinja2:46
-#: octoprint_mrbeam/templates/settings/maintenance_settings.jinja2:76
-#: octoprint_mrbeam/templates/settings/maintenance_settings.jinja2:104
+#: octoprint_mrbeam/templates/settings/about_settings.jinja2:95
+#: octoprint_mrbeam/templates/settings/maintenance_settings.jinja2:161
 msgid "https://www.mr-beam.org/en"
 msgstr ""
 
-#: octoprint_mrbeam/templates/settings/about_settings.jinja2:84
+#: octoprint_mrbeam/templates/settings/about_settings.jinja2:95
 msgid "Mr Beam Web Site"
 msgstr ""
 
-#: octoprint_mrbeam/templates/settings/about_settings.jinja2:85
-#: octoprint_mrbeam/templates/settings/about_settings.jinja2:108
+#: octoprint_mrbeam/templates/settings/about_settings.jinja2:96
+#: octoprint_mrbeam/templates/settings/about_settings.jinja2:119
 msgid "find.mr-beam service"
 msgstr ""
 
-#: octoprint_mrbeam/templates/settings/about_settings.jinja2:86
+#: octoprint_mrbeam/templates/settings/about_settings.jinja2:97
 msgid "Mr Beam Analytics"
 msgstr ""
 
-#: octoprint_mrbeam/templates/settings/about_settings.jinja2:94
+#: octoprint_mrbeam/templates/settings/about_settings.jinja2:105
 msgid "Links"
 msgstr ""
 
-#: octoprint_mrbeam/templates/settings/about_settings.jinja2:97
+#: octoprint_mrbeam/templates/settings/about_settings.jinja2:108
 msgid "Website"
 msgstr ""
 
-#: octoprint_mrbeam/templates/settings/about_settings.jinja2:98
+#: octoprint_mrbeam/templates/settings/about_settings.jinja2:109
 msgid "Social media"
 msgstr ""
 
-#: octoprint_mrbeam/templates/settings/about_settings.jinja2:107
+#: octoprint_mrbeam/templates/settings/about_settings.jinja2:118
 msgid "Official user group"
 msgstr ""
 
-#: octoprint_mrbeam/templates/settings/about_settings.jinja2:107
+#: octoprint_mrbeam/templates/settings/about_settings.jinja2:118
 msgid "on Facebook"
 msgstr ""
 
-#: octoprint_mrbeam/templates/settings/about_settings.jinja2:107
+#: octoprint_mrbeam/templates/settings/about_settings.jinja2:118
 msgid "German"
 msgstr ""
 
-#: octoprint_mrbeam/templates/settings/about_settings.jinja2:109
+#: octoprint_mrbeam/templates/settings/about_settings.jinja2:120
 msgid "Online resources"
 msgstr ""
 
-#: octoprint_mrbeam/templates/settings/about_settings.jinja2:109
+#: octoprint_mrbeam/templates/settings/about_settings.jinja2:120
 msgid "Mr Beam Downloads"
 msgstr ""
 
-#: octoprint_mrbeam/templates/settings/about_settings.jinja2:110
+#: octoprint_mrbeam/templates/settings/about_settings.jinja2:121
 msgid "Source code"
 msgstr ""
 
@@ -5052,108 +5066,121 @@ msgstr ""
 msgid "Adjust the animation speed of Mr Beam Lights."
 msgstr ""
 
-#: octoprint_mrbeam/templates/settings/maintenance_settings.jinja2:11
+#: octoprint_mrbeam/templates/settings/maintenance_settings.jinja2:12
+#: octoprint_mrbeam/templates/settings/maintenance_settings.jinja2:68
 msgid "Air Filter: Pre-filter"
 msgstr ""
 
-#: octoprint_mrbeam/templates/settings/maintenance_settings.jinja2:13
+#: octoprint_mrbeam/templates/settings/maintenance_settings.jinja2:14
+msgid ""
+"The pre filter filters all coarse particles from the exhaust air. Regular"
+" changing improves the air flow and preserves the main filter.*"
+msgstr ""
+
+#: octoprint_mrbeam/templates/settings/maintenance_settings.jinja2:21
+#: octoprint_mrbeam/templates/settings/maintenance_settings.jinja2:50
+#: octoprint_mrbeam/templates/settings/maintenance_settings.jinja2:87
+#: octoprint_mrbeam/templates/settings/maintenance_settings.jinja2:106
+#: octoprint_mrbeam/templates/settings/maintenance_settings.jinja2:136
+#: octoprint_mrbeam/templates/settings/maintenance_settings.jinja2:164
+msgid "Buy now"
+msgstr ""
+
+#: octoprint_mrbeam/templates/settings/maintenance_settings.jinja2:31
+#: octoprint_mrbeam/templates/settings/maintenance_settings.jinja2:60
+#: octoprint_mrbeam/templates/settings/maintenance_settings.jinja2:119
+#: octoprint_mrbeam/templates/settings/maintenance_settings.jinja2:146
+#: octoprint_mrbeam/templates/settings/maintenance_settings.jinja2:179
+#: octoprint_mrbeam/templates/settings/maintenance_settings.jinja2:206
+msgid "used"
+msgstr ""
+
+#: octoprint_mrbeam/templates/settings/maintenance_settings.jinja2:41
+#: octoprint_mrbeam/templates/settings/maintenance_settings.jinja2:128
+msgid "Air Filter: Main filter"
+msgstr ""
+
+#: octoprint_mrbeam/templates/settings/maintenance_settings.jinja2:43
+#: octoprint_mrbeam/templates/settings/maintenance_settings.jinja2:130
+msgid ""
+"The main filter is a combined hepa and activated carbon filter. It "
+"filters both tiny particles and odours from the exhaust air.*"
+msgstr ""
+
+#: octoprint_mrbeam/templates/settings/maintenance_settings.jinja2:70
 msgid ""
 "Please choose which pre-filter you are using, so the maintenance counter "
 "can be adjusted accordingly."
 msgstr ""
 
-#: octoprint_mrbeam/templates/settings/maintenance_settings.jinja2:22
+#: octoprint_mrbeam/templates/settings/maintenance_settings.jinja2:79
 msgid "Pre-filter mat (pink)"
 msgstr ""
 
-#: octoprint_mrbeam/templates/settings/maintenance_settings.jinja2:24
+#: octoprint_mrbeam/templates/settings/maintenance_settings.jinja2:81
 msgid ""
 "The pink pre-filter mat is suitable for all those who use materials that "
 "cause little material abrasion (acrylic felt, slate, concrete, foam "
 "rubber, acrylic, etc.)."
 msgstr ""
 
-#: octoprint_mrbeam/templates/settings/maintenance_settings.jinja2:30
-#: octoprint_mrbeam/templates/settings/maintenance_settings.jinja2:49
-#: octoprint_mrbeam/templates/settings/maintenance_settings.jinja2:79
-#: octoprint_mrbeam/templates/settings/maintenance_settings.jinja2:107
-msgid "Buy now"
-msgstr ""
-
-#: octoprint_mrbeam/templates/settings/maintenance_settings.jinja2:41
+#: octoprint_mrbeam/templates/settings/maintenance_settings.jinja2:98
 msgid "Pre-filter (cartridge)"
 msgstr ""
 
-#: octoprint_mrbeam/templates/settings/maintenance_settings.jinja2:43
+#: octoprint_mrbeam/templates/settings/maintenance_settings.jinja2:100
 msgid ""
 "The pre-filter cartridge is best suited for power users who process a lot"
 " of wood, cardboard, Kraftplex or also stamp rubber."
 msgstr ""
 
-#: octoprint_mrbeam/templates/settings/maintenance_settings.jinja2:62
-#: octoprint_mrbeam/templates/settings/maintenance_settings.jinja2:89
 #: octoprint_mrbeam/templates/settings/maintenance_settings.jinja2:122
 #: octoprint_mrbeam/templates/settings/maintenance_settings.jinja2:149
-msgid "used"
-msgstr ""
-
-#: octoprint_mrbeam/templates/settings/maintenance_settings.jinja2:65
-#: octoprint_mrbeam/templates/settings/maintenance_settings.jinja2:92
-#: octoprint_mrbeam/templates/settings/maintenance_settings.jinja2:125
-#: octoprint_mrbeam/templates/settings/maintenance_settings.jinja2:152
+#: octoprint_mrbeam/templates/settings/maintenance_settings.jinja2:182
+#: octoprint_mrbeam/templates/settings/maintenance_settings.jinja2:209
 msgid "Reset"
 msgstr ""
 
-#: octoprint_mrbeam/templates/settings/maintenance_settings.jinja2:71
-msgid "Air Filter: Main filter"
-msgstr ""
-
-#: octoprint_mrbeam/templates/settings/maintenance_settings.jinja2:73
-msgid ""
-"The main filter is a combined hepa and activated carbon filter. It "
-"filters both tiny particles and odours from the exhaust air.*"
-msgstr ""
-
-#: octoprint_mrbeam/templates/settings/maintenance_settings.jinja2:98
+#: octoprint_mrbeam/templates/settings/maintenance_settings.jinja2:155
 msgid "Laser head cleaning"
 msgstr ""
 
-#: octoprint_mrbeam/templates/settings/maintenance_settings.jinja2:101
+#: octoprint_mrbeam/templates/settings/maintenance_settings.jinja2:158
 msgid ""
 "Clean the laser head regularly to maintain its full performance. You can "
 "either do it yourself or you can send it to us and we clean it for you!"
 msgstr ""
 
-#: octoprint_mrbeam/templates/settings/maintenance_settings.jinja2:112
+#: octoprint_mrbeam/templates/settings/maintenance_settings.jinja2:169
 msgid "How to clean a laser head"
 msgstr ""
 
-#: octoprint_mrbeam/templates/settings/maintenance_settings.jinja2:131
+#: octoprint_mrbeam/templates/settings/maintenance_settings.jinja2:188
 msgid "Mechanics"
 msgstr ""
 
-#: octoprint_mrbeam/templates/settings/maintenance_settings.jinja2:133
+#: octoprint_mrbeam/templates/settings/maintenance_settings.jinja2:190
 msgid "The gantry should always be clean. Oil it regularly with an acid-free oil."
 msgstr ""
 
-#: octoprint_mrbeam/templates/settings/maintenance_settings.jinja2:139
+#: octoprint_mrbeam/templates/settings/maintenance_settings.jinja2:196
 msgid "Caring of the mechanical parts"
 msgstr ""
 
-#: octoprint_mrbeam/templates/settings/maintenance_settings.jinja2:156
+#: octoprint_mrbeam/templates/settings/maintenance_settings.jinja2:213
 msgid ""
 "*Users without a Mr Beam Air Filter System can safely ignore and reset "
 "this counter."
 msgstr ""
 
-#: octoprint_mrbeam/templates/settings/maintenance_settings.jinja2:164
+#: octoprint_mrbeam/templates/settings/maintenance_settings.jinja2:221
 #, python-format
 msgid ""
 "The hour counter for the following component will now be reset: "
 "%(component_to_reset)s."
 msgstr ""
 
-#: octoprint_mrbeam/templates/settings/maintenance_settings.jinja2:165
+#: octoprint_mrbeam/templates/settings/maintenance_settings.jinja2:222
 msgid "Please notice that there is no way to undo this operation"
 msgstr ""