diff --git a/homeassistant/components/smartthings/sensor.py b/homeassistant/components/smartthings/sensor.py
index a38331d6aed..d3e2ab09a3f 100644
--- a/homeassistant/components/smartthings/sensor.py
+++ b/homeassistant/components/smartthings/sensor.py
@@ -476,6 +476,16 @@ CAPABILITY_TO_SENSORS: dict[
             )
         ]
     },
+    Capability.FINE_DUST_SENSOR: {
+        Attribute.FINE_DUST_LEVEL: [
+            SmartThingsSensorEntityDescription(
+                key=Attribute.FINE_DUST_LEVEL,
+                native_unit_of_measurement=CONCENTRATION_MICROGRAMS_PER_CUBIC_METER,
+                state_class=SensorStateClass.MEASUREMENT,
+                device_class=SensorDeviceClass.PM25,
+            )
+        ]
+    },
     # Haven't seen at devices yet
     Capability.FORMALDEHYDE_MEASUREMENT: {
         Attribute.FORMALDEHYDE_LEVEL: [
diff --git a/tests/components/smartthings/conftest.py b/tests/components/smartthings/conftest.py
index 9a633a38f1a..f13617d64d5 100644
--- a/tests/components/smartthings/conftest.py
+++ b/tests/components/smartthings/conftest.py
@@ -96,6 +96,7 @@ def mock_smartthings() -> Generator[AsyncMock]:
 
 @pytest.fixture(
     params=[
+        "aq_sensor_3_ikea",
         "da_ac_airsensor_01001",
         "da_ac_rac_000001",
         "da_ac_rac_000003",
diff --git a/tests/components/smartthings/fixtures/device_status/aq_sensor_3_ikea.json b/tests/components/smartthings/fixtures/device_status/aq_sensor_3_ikea.json
new file mode 100644
index 00000000000..383c5d1e85e
--- /dev/null
+++ b/tests/components/smartthings/fixtures/device_status/aq_sensor_3_ikea.json
@@ -0,0 +1,94 @@
+{
+  "components": {
+    "main": {
+      "tvocMeasurement": {
+        "tvocLevel": {
+          "value": 0.1,
+          "unit": "ppm",
+          "timestamp": "2025-08-15T13:48:52.222Z"
+        }
+      },
+      "fineDustSensor": {
+        "fineDustLevel": {
+          "value": 1,
+          "unit": "\u03bcg/m^3",
+          "timestamp": "2025-08-15T13:29:36.938Z"
+        }
+      },
+      "relativeHumidityMeasurement": {
+        "humidity": {
+          "value": 53.0,
+          "unit": "%",
+          "timestamp": "2025-08-15T13:48:42.554Z"
+        }
+      },
+      "temperatureMeasurement": {
+        "temperatureRange": {
+          "value": {
+            "minimum": -10.0,
+            "maximum": 50.0
+          },
+          "unit": "C",
+          "timestamp": "2025-03-19T19:48:47.896Z"
+        },
+        "temperature": {
+          "value": 22.0,
+          "unit": "C",
+          "timestamp": "2025-08-15T12:25:37.127Z"
+        }
+      },
+      "refresh": {},
+      "airQualityHealthConcern": {
+        "supportedAirQualityValues": {
+          "value": null
+        },
+        "airQualityHealthConcern": {
+          "value": "good",
+          "timestamp": "2025-08-15T13:17:38.791Z"
+        }
+      },
+      "firmwareUpdate": {
+        "lastUpdateStatusReason": {
+          "value": "TOO_MANY_CLIENTS",
+          "timestamp": "2025-06-09T05:59:52.076Z"
+        },
+        "imageTransferProgress": {
+          "value": null
+        },
+        "availableVersion": {
+          "value": "00010010",
+          "timestamp": "2025-03-19T19:49:07.016Z"
+        },
+        "lastUpdateStatus": {
+          "value": "updateFailed",
+          "timestamp": "2025-06-09T05:59:52.072Z"
+        },
+        "supportedCommands": {
+          "value": null
+        },
+        "state": {
+          "value": "normalOperation",
+          "timestamp": "2025-06-09T05:59:52.105Z"
+        },
+        "estimatedTimeRemaining": {
+          "value": null
+        },
+        "updateAvailable": {
+          "value": false,
+          "timestamp": "2025-03-19T19:49:07.014Z"
+        },
+        "currentVersion": {
+          "value": "00010010",
+          "timestamp": "2025-06-09T05:59:52.071Z"
+        },
+        "lastUpdateTime": {
+          "value": "2025-06-09T05:59:51Z",
+          "timestamp": "2025-06-09T05:59:52.076Z"
+        },
+        "supportsProgressReports": {
+          "value": null
+        }
+      }
+    }
+  }
+}
diff --git a/tests/components/smartthings/fixtures/devices/aq_sensor_3_ikea.json b/tests/components/smartthings/fixtures/devices/aq_sensor_3_ikea.json
new file mode 100644
index 00000000000..dc4c4821587
--- /dev/null
+++ b/tests/components/smartthings/fixtures/devices/aq_sensor_3_ikea.json
@@ -0,0 +1,77 @@
+{
+  "items": [
+    {
+      "deviceId": "e44d4e5c-45ea-498f-a653-f5d0c3d97bb8",
+      "name": "humidity-temp-dust-tvoc",
+      "label": "aq-sensor-3-ikea",
+      "manufacturerName": "SmartThingsCommunity",
+      "presentationId": "a39f5e57-c861-3904-9567-acda80b7cf2d",
+      "deviceManufacturerCode": "IKEA of Sweden",
+      "locationId": "9fbc89a0-5c32-494d-9a49-68186d6a5387",
+      "ownerId": "d051c4c5-8ccb-47b9-87ee-7ebb99694b9f",
+      "roomId": "f5ce3177-e0a6-4415-8496-bafa1611ee62",
+      "components": [
+        {
+          "id": "main",
+          "label": "main",
+          "capabilities": [
+            {
+              "id": "temperatureMeasurement",
+              "version": 1
+            },
+            {
+              "id": "relativeHumidityMeasurement",
+              "version": 1
+            },
+            {
+              "id": "fineDustSensor",
+              "version": 1
+            },
+            {
+              "id": "airQualityHealthConcern",
+              "version": 1
+            },
+            {
+              "id": "tvocMeasurement",
+              "version": 1
+            },
+            {
+              "id": "firmwareUpdate",
+              "version": 1
+            },
+            {
+              "id": "refresh",
+              "version": 1
+            }
+          ],
+          "categories": [
+            {
+              "name": "AirQualityDetector",
+              "categoryType": "manufacturer"
+            }
+          ],
+          "optional": false
+        }
+      ],
+      "createTime": "2025-03-19T19:48:39.571Z",
+      "parentDeviceId": "5616f552-5bae-4a1f-94b3-9eb2673a1b28",
+      "profile": {
+        "id": "0720a973-6923-39d4-8991-3aaed6edf5d5"
+      },
+      "zigbee": {
+        "eui": "0CAE5FFFFECE4328",
+        "networkId": "846B",
+        "driverId": "9bee78b3-204e-4118-8265-8767f9152c49",
+        "executingLocally": true,
+        "hubId": "5616f552-5bae-4a1f-94b3-9eb2673a1b28",
+        "provisioningState": "PROVISIONED"
+      },
+      "type": "ZIGBEE",
+      "restrictionTier": 0,
+      "allowed": null,
+      "executionContext": "LOCAL",
+      "relationships": []
+    }
+  ],
+  "_links": {}
+}
diff --git a/tests/components/smartthings/snapshots/test_init.ambr b/tests/components/smartthings/snapshots/test_init.ambr
index 5fd7040f61b..d732578212a 100644
--- a/tests/components/smartthings/snapshots/test_init.ambr
+++ b/tests/components/smartthings/snapshots/test_init.ambr
@@ -64,6 +64,37 @@
     'via_device_id': None,
   })
 # ---
+# name: test_devices[aq_sensor_3_ikea]
+  DeviceRegistryEntrySnapshot({
+    'area_id': None,
+    'config_entries': <ANY>,
+    'config_entries_subentries': <ANY>,
+    'configuration_url': 'https://account.smartthings.com',
+    'connections': set({
+    }),
+    'disabled_by': None,
+    'entry_type': None,
+    'hw_version': None,
+    'id': <ANY>,
+    'identifiers': set({
+      tuple(
+        'smartthings',
+        'e44d4e5c-45ea-498f-a653-f5d0c3d97bb8',
+      ),
+    }),
+    'labels': set({
+    }),
+    'manufacturer': None,
+    'model': None,
+    'model_id': None,
+    'name': 'aq-sensor-3-ikea',
+    'name_by_user': None,
+    'primary_config_entry': <ANY>,
+    'serial_number': None,
+    'sw_version': None,
+    'via_device_id': None,
+  })
+# ---
 # name: test_devices[aux_ac]
   DeviceRegistryEntrySnapshot({
     'area_id': None,
diff --git a/tests/components/smartthings/snapshots/test_sensor.ambr b/tests/components/smartthings/snapshots/test_sensor.ambr
index 8771ed505cf..dfc738bf7d7 100644
--- a/tests/components/smartthings/snapshots/test_sensor.ambr
+++ b/tests/components/smartthings/snapshots/test_sensor.ambr
@@ -163,6 +163,221 @@
     'state': 'unknown',
   })
 # ---
+# name: test_all_entities[aq_sensor_3_ikea][sensor.aq_sensor_3_ikea_humidity-entry]
+  EntityRegistryEntrySnapshot({
+    'aliases': set({
+    }),
+    'area_id': None,
+    'capabilities': dict({
+      'state_class': <SensorStateClass.MEASUREMENT: 'measurement'>,
+    }),
+    'config_entry_id': <ANY>,
+    'config_subentry_id': <ANY>,
+    'device_class': None,
+    'device_id': <ANY>,
+    'disabled_by': None,
+    'domain': 'sensor',
+    'entity_category': None,
+    'entity_id': 'sensor.aq_sensor_3_ikea_humidity',
+    'has_entity_name': True,
+    'hidden_by': None,
+    'icon': None,
+    'id': <ANY>,
+    'labels': set({
+    }),
+    'name': None,
+    'options': dict({
+    }),
+    'original_device_class': <SensorDeviceClass.HUMIDITY: 'humidity'>,
+    'original_icon': None,
+    'original_name': 'Humidity',
+    'platform': 'smartthings',
+    'previous_unique_id': None,
+    'suggested_object_id': None,
+    'supported_features': 0,
+    'translation_key': None,
+    'unique_id': 'e44d4e5c-45ea-498f-a653-f5d0c3d97bb8_main_relativeHumidityMeasurement_humidity_humidity',
+    'unit_of_measurement': '%',
+  })
+# ---
+# name: test_all_entities[aq_sensor_3_ikea][sensor.aq_sensor_3_ikea_humidity-state]
+  StateSnapshot({
+    'attributes': ReadOnlyDict({
+      'device_class': 'humidity',
+      'friendly_name': 'aq-sensor-3-ikea Humidity',
+      'state_class': <SensorStateClass.MEASUREMENT: 'measurement'>,
+      'unit_of_measurement': '%',
+    }),
+    'context': <ANY>,
+    'entity_id': 'sensor.aq_sensor_3_ikea_humidity',
+    'last_changed': <ANY>,
+    'last_reported': <ANY>,
+    'last_updated': <ANY>,
+    'state': '53.0',
+  })
+# ---
+# name: test_all_entities[aq_sensor_3_ikea][sensor.aq_sensor_3_ikea_pm2_5-entry]
+  EntityRegistryEntrySnapshot({
+    'aliases': set({
+    }),
+    'area_id': None,
+    'capabilities': dict({
+      'state_class': <SensorStateClass.MEASUREMENT: 'measurement'>,
+    }),
+    'config_entry_id': <ANY>,
+    'config_subentry_id': <ANY>,
+    'device_class': None,
+    'device_id': <ANY>,
+    'disabled_by': None,
+    'domain': 'sensor',
+    'entity_category': None,
+    'entity_id': 'sensor.aq_sensor_3_ikea_pm2_5',
+    'has_entity_name': True,
+    'hidden_by': None,
+    'icon': None,
+    'id': <ANY>,
+    'labels': set({
+    }),
+    'name': None,
+    'options': dict({
+    }),
+    'original_device_class': <SensorDeviceClass.PM25: 'pm25'>,
+    'original_icon': None,
+    'original_name': 'PM2.5',
+    'platform': 'smartthings',
+    'previous_unique_id': None,
+    'suggested_object_id': None,
+    'supported_features': 0,
+    'translation_key': None,
+    'unique_id': 'e44d4e5c-45ea-498f-a653-f5d0c3d97bb8_main_fineDustSensor_fineDustLevel_fineDustLevel',
+    'unit_of_measurement': 'µg/m³',
+  })
+# ---
+# name: test_all_entities[aq_sensor_3_ikea][sensor.aq_sensor_3_ikea_pm2_5-state]
+  StateSnapshot({
+    'attributes': ReadOnlyDict({
+      'device_class': 'pm25',
+      'friendly_name': 'aq-sensor-3-ikea PM2.5',
+      'state_class': <SensorStateClass.MEASUREMENT: 'measurement'>,
+      'unit_of_measurement': 'µg/m³',
+    }),
+    'context': <ANY>,
+    'entity_id': 'sensor.aq_sensor_3_ikea_pm2_5',
+    'last_changed': <ANY>,
+    'last_reported': <ANY>,
+    'last_updated': <ANY>,
+    'state': '1',
+  })
+# ---
+# name: test_all_entities[aq_sensor_3_ikea][sensor.aq_sensor_3_ikea_temperature-entry]
+  EntityRegistryEntrySnapshot({
+    'aliases': set({
+    }),
+    'area_id': None,
+    'capabilities': dict({
+      'state_class': <SensorStateClass.MEASUREMENT: 'measurement'>,
+    }),
+    'config_entry_id': <ANY>,
+    'config_subentry_id': <ANY>,
+    'device_class': None,
+    'device_id': <ANY>,
+    'disabled_by': None,
+    'domain': 'sensor',
+    'entity_category': None,
+    'entity_id': 'sensor.aq_sensor_3_ikea_temperature',
+    'has_entity_name': True,
+    'hidden_by': None,
+    'icon': None,
+    'id': <ANY>,
+    'labels': set({
+    }),
+    'name': None,
+    'options': dict({
+      'sensor': dict({
+        'suggested_display_precision': 1,
+      }),
+    }),
+    'original_device_class': <SensorDeviceClass.TEMPERATURE: 'temperature'>,
+    'original_icon': None,
+    'original_name': 'Temperature',
+    'platform': 'smartthings',
+    'previous_unique_id': None,
+    'suggested_object_id': None,
+    'supported_features': 0,
+    'translation_key': None,
+    'unique_id': 'e44d4e5c-45ea-498f-a653-f5d0c3d97bb8_main_temperatureMeasurement_temperature_temperature',
+    'unit_of_measurement': <UnitOfTemperature.CELSIUS: '°C'>,
+  })
+# ---
+# name: test_all_entities[aq_sensor_3_ikea][sensor.aq_sensor_3_ikea_temperature-state]
+  StateSnapshot({
+    'attributes': ReadOnlyDict({
+      'device_class': 'temperature',
+      'friendly_name': 'aq-sensor-3-ikea Temperature',
+      'state_class': <SensorStateClass.MEASUREMENT: 'measurement'>,
+      'unit_of_measurement': <UnitOfTemperature.CELSIUS: '°C'>,
+    }),
+    'context': <ANY>,
+    'entity_id': 'sensor.aq_sensor_3_ikea_temperature',
+    'last_changed': <ANY>,
+    'last_reported': <ANY>,
+    'last_updated': <ANY>,
+    'state': '22.0',
+  })
+# ---
+# name: test_all_entities[aq_sensor_3_ikea][sensor.aq_sensor_3_ikea_volatile_organic_compounds_parts-entry]
+  EntityRegistryEntrySnapshot({
+    'aliases': set({
+    }),
+    'area_id': None,
+    'capabilities': dict({
+      'state_class': <SensorStateClass.MEASUREMENT: 'measurement'>,
+    }),
+    'config_entry_id': <ANY>,
+    'config_subentry_id': <ANY>,
+    'device_class': None,
+    'device_id': <ANY>,
+    'disabled_by': None,
+    'domain': 'sensor',
+    'entity_category': None,
+    'entity_id': 'sensor.aq_sensor_3_ikea_volatile_organic_compounds_parts',
+    'has_entity_name': True,
+    'hidden_by': None,
+    'icon': None,
+    'id': <ANY>,
+    'labels': set({
+    }),
+    'name': None,
+    'options': dict({
+    }),
+    'original_device_class': <SensorDeviceClass.VOLATILE_ORGANIC_COMPOUNDS_PARTS: 'volatile_organic_compounds_parts'>,
+    'original_icon': None,
+    'original_name': 'Volatile organic compounds parts',
+    'platform': 'smartthings',
+    'previous_unique_id': None,
+    'suggested_object_id': None,
+    'supported_features': 0,
+    'translation_key': None,
+    'unique_id': 'e44d4e5c-45ea-498f-a653-f5d0c3d97bb8_main_tvocMeasurement_tvocLevel_tvocLevel',
+    'unit_of_measurement': 'ppm',
+  })
+# ---
+# name: test_all_entities[aq_sensor_3_ikea][sensor.aq_sensor_3_ikea_volatile_organic_compounds_parts-state]
+  StateSnapshot({
+    'attributes': ReadOnlyDict({
+      'device_class': 'volatile_organic_compounds_parts',
+      'friendly_name': 'aq-sensor-3-ikea Volatile organic compounds parts',
+      'state_class': <SensorStateClass.MEASUREMENT: 'measurement'>,
+      'unit_of_measurement': 'ppm',
+    }),
+    'context': <ANY>,
+    'entity_id': 'sensor.aq_sensor_3_ikea_volatile_organic_compounds_parts',
+    'last_changed': <ANY>,
+    'last_reported': <ANY>,
+    'last_updated': <ANY>,
+    'state': '0.1',
+  })
+# ---
 # name: test_all_entities[aux_ac][sensor.aux_a_c_on_off_temperature-entry]
   EntityRegistryEntrySnapshot({
     'aliases': set({
diff --git a/tests/components/smartthings/snapshots/test_update.ambr b/tests/components/smartthings/snapshots/test_update.ambr
index 3191411a429..eb6b99b3363 100644
--- a/tests/components/smartthings/snapshots/test_update.ambr
+++ b/tests/components/smartthings/snapshots/test_update.ambr
@@ -1,4 +1,65 @@
 # serializer version: 1
+# name: test_all_entities[aq_sensor_3_ikea][update.aq_sensor_3_ikea_firmware-entry]
+  EntityRegistryEntrySnapshot({
+    'aliases': set({
+    }),
+    'area_id': None,
+    'capabilities': None,
+    'config_entry_id': <ANY>,
+    'config_subentry_id': <ANY>,
+    'device_class': None,
+    'device_id': <ANY>,
+    'disabled_by': None,
+    'domain': 'update',
+    'entity_category': <EntityCategory.CONFIG: 'config'>,
+    'entity_id': 'update.aq_sensor_3_ikea_firmware',
+    'has_entity_name': True,
+    'hidden_by': None,
+    'icon': None,
+    'id': <ANY>,
+    'labels': set({
+    }),
+    'name': None,
+    'options': dict({
+    }),
+    'original_device_class': <UpdateDeviceClass.FIRMWARE: 'firmware'>,
+    'original_icon': None,
+    'original_name': 'Firmware',
+    'platform': 'smartthings',
+    'previous_unique_id': None,
+    'suggested_object_id': None,
+    'supported_features': <UpdateEntityFeature: 5>,
+    'translation_key': None,
+    'unique_id': 'e44d4e5c-45ea-498f-a653-f5d0c3d97bb8_main',
+    'unit_of_measurement': None,
+  })
+# ---
+# name: test_all_entities[aq_sensor_3_ikea][update.aq_sensor_3_ikea_firmware-state]
+  StateSnapshot({
+    'attributes': ReadOnlyDict({
+      'auto_update': False,
+      'device_class': 'firmware',
+      'display_precision': 0,
+      'entity_picture': 'https://brands.home-assistant.io/_/smartthings/icon.png',
+      'friendly_name': 'aq-sensor-3-ikea Firmware',
+      'in_progress': False,
+      'installed_version': '00010010',
+      'latest_version': '00010010',
+      'release_summary': None,
+      'release_url': None,
+      'skipped_version': None,
+      'supported_features': <UpdateEntityFeature: 5>,
+      'title': None,
+      'update_percentage': None,
+    }),
+    'context': <ANY>,
+    'entity_id': 'update.aq_sensor_3_ikea_firmware',
+    'last_changed': <ANY>,
+    'last_reported': <ANY>,
+    'last_updated': <ANY>,
+    'state': 'off',
+  })
+# ---
 # name: test_all_entities[bosch_radiator_thermostat_ii][update.radiator_thermostat_ii_m_wohnzimmer_firmware-entry]
   EntityRegistryEntrySnapshot({
     'aliases': set({