Use UnitOfPressure in integrations (#84230)

homeassistant/components/airthings/sensor.py

@@ -15,9 +15,9 @@ from homeassistant.const import (
     CONCENTRATION_PARTS_PER_BILLION,
     CONCENTRATION_PARTS_PER_MILLION,
     PERCENTAGE,
-    PRESSURE_MBAR,
     SIGNAL_STRENGTH_DECIBELS,
     TEMP_CELSIUS,
+    UnitOfPressure,
 )
 from homeassistant.core import HomeAssistant
 from homeassistant.helpers.entity import DeviceInfo, EntityCategory
@@ -51,7 +51,7 @@ SENSORS: dict[str, SensorEntityDescription] = {
     "pressure": SensorEntityDescription(
         key="pressure",
         device_class=SensorDeviceClass.PRESSURE,
-        native_unit_of_measurement=PRESSURE_MBAR,
+        native_unit_of_measurement=UnitOfPressure.MBAR,
         name="Pressure",
     ),
     "battery": SensorEntityDescription(