diff --git a/homeassistant/components/purpleair/__init__.py b/homeassistant/components/purpleair/__init__.py
index fb86612597a..2d4022946b2 100644
--- a/homeassistant/components/purpleair/__init__.py
+++ b/homeassistant/components/purpleair/__init__.py
@@ -2,21 +2,9 @@
 
 from __future__ import annotations
 
-from collections.abc import Mapping
-from typing import Any
-
-from aiopurpleair.models.sensors import SensorModel
-
 from homeassistant.config_entries import ConfigEntry
-from homeassistant.const import (
-    ATTR_LATITUDE,
-    ATTR_LONGITUDE,
-    CONF_SHOW_ON_MAP,
-    Platform,
-)
+from homeassistant.const import Platform
 from homeassistant.core import HomeAssistant
-from homeassistant.helpers.device_registry import DeviceInfo
-from homeassistant.helpers.update_coordinator import CoordinatorEntity
 
 from .const import DOMAIN
 from .coordinator import PurpleAirDataUpdateCoordinator
@@ -48,53 +36,3 @@ async def async_unload_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
         hass.data[DOMAIN].pop(entry.entry_id)
 
     return unload_ok
-
-
-class PurpleAirEntity(CoordinatorEntity[PurpleAirDataUpdateCoordinator]):
-    """Define a base PurpleAir entity."""
-
-    _attr_has_entity_name = True
-
-    def __init__(
-        self,
-        coordinator: PurpleAirDataUpdateCoordinator,
-        entry: ConfigEntry,
-        sensor_index: int,
-    ) -> None:
-        """Initialize."""
-        super().__init__(coordinator)
-
-        self._sensor_index = sensor_index
-
-        self._attr_device_info = DeviceInfo(
-            configuration_url=self.coordinator.async_get_map_url(sensor_index),
-            hw_version=self.sensor_data.hardware,
-            identifiers={(DOMAIN, str(sensor_index))},
-            manufacturer="PurpleAir, Inc.",
-            model=self.sensor_data.model,
-            name=self.sensor_data.name,
-            sw_version=self.sensor_data.firmware_version,
-        )
-        self._entry = entry
-
-    @property
-    def extra_state_attributes(self) -> Mapping[str, Any]:
-        """Return entity specific state attributes."""
-        attrs = {}
-
-        # Displaying the geography on the map relies upon putting the latitude/longitude
-        # in the entity attributes with "latitude" and "longitude" as the keys.
-        # Conversely, we can hide the location on the map by using other keys, like
-        # "lati" and "long":
-        if self._entry.options.get(CONF_SHOW_ON_MAP):
-            attrs[ATTR_LATITUDE] = self.sensor_data.latitude
-            attrs[ATTR_LONGITUDE] = self.sensor_data.longitude
-        else:
-            attrs["lati"] = self.sensor_data.latitude
-            attrs["long"] = self.sensor_data.longitude
-        return attrs
-
-    @property
-    def sensor_data(self) -> SensorModel:
-        """Define a property to get this entity's SensorModel object."""
-        return self.coordinator.data.data[self._sensor_index]
diff --git a/homeassistant/components/purpleair/entity.py b/homeassistant/components/purpleair/entity.py
new file mode 100644
index 00000000000..4f7be1874ed
--- /dev/null
+++ b/homeassistant/components/purpleair/entity.py
@@ -0,0 +1,66 @@
+"""The PurpleAir integration."""
+
+from __future__ import annotations
+
+from collections.abc import Mapping
+from typing import Any
+
+from aiopurpleair.models.sensors import SensorModel
+
+from homeassistant.config_entries import ConfigEntry
+from homeassistant.const import ATTR_LATITUDE, ATTR_LONGITUDE, CONF_SHOW_ON_MAP
+from homeassistant.helpers.device_registry import DeviceInfo
+from homeassistant.helpers.update_coordinator import CoordinatorEntity
+
+from .const import DOMAIN
+from .coordinator import PurpleAirDataUpdateCoordinator
+
+
+class PurpleAirEntity(CoordinatorEntity[PurpleAirDataUpdateCoordinator]):
+    """Define a base PurpleAir entity."""
+
+    _attr_has_entity_name = True
+
+    def __init__(
+        self,
+        coordinator: PurpleAirDataUpdateCoordinator,
+        entry: ConfigEntry,
+        sensor_index: int,
+    ) -> None:
+        """Initialize."""
+        super().__init__(coordinator)
+
+        self._sensor_index = sensor_index
+
+        self._attr_device_info = DeviceInfo(
+            configuration_url=self.coordinator.async_get_map_url(sensor_index),
+            hw_version=self.sensor_data.hardware,
+            identifiers={(DOMAIN, str(sensor_index))},
+            manufacturer="PurpleAir, Inc.",
+            model=self.sensor_data.model,
+            name=self.sensor_data.name,
+            sw_version=self.sensor_data.firmware_version,
+        )
+        self._entry = entry
+
+    @property
+    def extra_state_attributes(self) -> Mapping[str, Any]:
+        """Return entity specific state attributes."""
+        attrs = {}
+
+        # Displaying the geography on the map relies upon putting the latitude/longitude
+        # in the entity attributes with "latitude" and "longitude" as the keys.
+        # Conversely, we can hide the location on the map by using other keys, like
+        # "lati" and "long":
+        if self._entry.options.get(CONF_SHOW_ON_MAP):
+            attrs[ATTR_LATITUDE] = self.sensor_data.latitude
+            attrs[ATTR_LONGITUDE] = self.sensor_data.longitude
+        else:
+            attrs["lati"] = self.sensor_data.latitude
+            attrs["long"] = self.sensor_data.longitude
+        return attrs
+
+    @property
+    def sensor_data(self) -> SensorModel:
+        """Define a property to get this entity's SensorModel object."""
+        return self.coordinator.data.data[self._sensor_index]
diff --git a/homeassistant/components/purpleair/sensor.py b/homeassistant/components/purpleair/sensor.py
index d1db77c2c31..9fb0249a360 100644
--- a/homeassistant/components/purpleair/sensor.py
+++ b/homeassistant/components/purpleair/sensor.py
@@ -27,9 +27,9 @@ from homeassistant.const import (
 from homeassistant.core import HomeAssistant
 from homeassistant.helpers.entity_platform import AddEntitiesCallback
 
-from . import PurpleAirEntity
 from .const import CONF_SENSOR_INDICES, DOMAIN
 from .coordinator import PurpleAirDataUpdateCoordinator
+from .entity import PurpleAirEntity
 
 CONCENTRATION_PARTICLES_PER_100_MILLILITERS = f"particles/100{UnitOfVolume.MILLILITERS}"