diff --git a/homeassistant/components/airq/const.py b/homeassistant/components/airq/const.py
index 7a5abe47a8d..3e5c736c8c5 100644
--- a/homeassistant/components/airq/const.py
+++ b/homeassistant/components/airq/const.py
@@ -6,6 +6,5 @@ CONF_RETURN_AVERAGE: Final = "return_average"
 CONF_CLIP_NEGATIVE: Final = "clip_negatives"
 DOMAIN: Final = "airq"
 MANUFACTURER: Final = "CorantGmbH"
-CONCENTRATION_GRAMS_PER_CUBIC_METER: Final = "g/m³"
 ACTIVITY_BECQUEREL_PER_CUBIC_METER: Final = "Bq/m³"
 UPDATE_INTERVAL: float = 10.0
diff --git a/homeassistant/components/airq/icons.json b/homeassistant/components/airq/icons.json
index fec6eb8dd86..09f262aeaaf 100644
--- a/homeassistant/components/airq/icons.json
+++ b/homeassistant/components/airq/icons.json
@@ -4,9 +4,6 @@
       "health_index": {
         "default": "mdi:heart-pulse"
       },
-      "absolute_humidity": {
-        "default": "mdi:water"
-      },
       "oxygen": {
         "default": "mdi:leaf"
       },
diff --git a/homeassistant/components/airq/sensor.py b/homeassistant/components/airq/sensor.py
index 08a344ae9f4..516114840d3 100644
--- a/homeassistant/components/airq/sensor.py
+++ b/homeassistant/components/airq/sensor.py
@@ -14,6 +14,7 @@ from homeassistant.components.sensor import (
     SensorStateClass,
 )
 from homeassistant.const import (
+    CONCENTRATION_GRAMS_PER_CUBIC_METER,
     CONCENTRATION_MICROGRAMS_PER_CUBIC_METER,
     CONCENTRATION_MILLIGRAMS_PER_CUBIC_METER,
     CONCENTRATION_PARTS_PER_BILLION,
@@ -28,10 +29,7 @@ from homeassistant.helpers.entity_platform import AddConfigEntryEntitiesCallback
 from homeassistant.helpers.update_coordinator import CoordinatorEntity
 
 from . import AirQConfigEntry, AirQCoordinator
-from .const import (
-    ACTIVITY_BECQUEREL_PER_CUBIC_METER,
-    CONCENTRATION_GRAMS_PER_CUBIC_METER,
-)
+from .const import ACTIVITY_BECQUEREL_PER_CUBIC_METER
 
 _LOGGER = logging.getLogger(__name__)
 
@@ -195,7 +193,7 @@ SENSOR_TYPES: list[AirQEntityDescription] = [
     ),
     AirQEntityDescription(
         key="humidity_abs",
-        translation_key="absolute_humidity",
+        device_class=SensorDeviceClass.ABSOLUTE_HUMIDITY,
         native_unit_of_measurement=CONCENTRATION_GRAMS_PER_CUBIC_METER,
         state_class=SensorStateClass.MEASUREMENT,
         value=lambda data: data.get("humidity_abs"),
diff --git a/homeassistant/components/airq/strings.json b/homeassistant/components/airq/strings.json
index 9c16975a3ab..de8c7d86b09 100644
--- a/homeassistant/components/airq/strings.json
+++ b/homeassistant/components/airq/strings.json
@@ -93,9 +93,6 @@
       "health_index": {
         "name": "Health index"
       },
-      "absolute_humidity": {
-        "name": "Absolute humidity"
-      },
       "hydrogen": {
         "name": "Hydrogen"
       },