diff --git a/homeassistant/components/luftdaten/__init__.py b/homeassistant/components/luftdaten/__init__.py
index f525bcb69bc..e449507b194 100644
--- a/homeassistant/components/luftdaten/__init__.py
+++ b/homeassistant/components/luftdaten/__init__.py
@@ -32,55 +32,47 @@ _LOGGER = logging.getLogger(__name__)
 DATA_LUFTDATEN = "luftdaten"
 DATA_LUFTDATEN_CLIENT = "data_luftdaten_client"
 DATA_LUFTDATEN_LISTENER = "data_luftdaten_listener"
-DEFAULT_ATTRIBUTION = "Data provided by luftdaten.info"
 
 PLATFORMS = [Platform.SENSOR]
 
-SENSOR_HUMIDITY = "humidity"
-SENSOR_PM10 = "P1"
-SENSOR_PM2_5 = "P2"
-SENSOR_PRESSURE = "pressure"
-SENSOR_PRESSURE_AT_SEALEVEL = "pressure_at_sealevel"
-SENSOR_TEMPERATURE = "temperature"
-
 TOPIC_UPDATE = f"{DOMAIN}_data_update"
 
 SENSOR_TYPES: tuple[SensorEntityDescription, ...] = (
     SensorEntityDescription(
-        key=SENSOR_TEMPERATURE,
+        key="temperature",
         name="Temperature",
         native_unit_of_measurement=TEMP_CELSIUS,
         device_class=SensorDeviceClass.TEMPERATURE,
     ),
     SensorEntityDescription(
-        key=SENSOR_HUMIDITY,
+        key="humidity",
         name="Humidity",
         icon="mdi:water-percent",
         native_unit_of_measurement=PERCENTAGE,
         device_class=SensorDeviceClass.HUMIDITY,
     ),
     SensorEntityDescription(
-        key=SENSOR_PRESSURE,
+        key="pressure",
         name="Pressure",
         icon="mdi:arrow-down-bold",
         native_unit_of_measurement=PRESSURE_PA,
         device_class=SensorDeviceClass.PRESSURE,
     ),
     SensorEntityDescription(
-        key=SENSOR_PRESSURE_AT_SEALEVEL,
+        key="pressure_at_sealevel",
         name="Pressure at sealevel",
         icon="mdi:download",
         native_unit_of_measurement=PRESSURE_PA,
         device_class=SensorDeviceClass.PRESSURE,
     ),
     SensorEntityDescription(
-        key=SENSOR_PM10,
+        key="P1",
         name="PM10",
         icon="mdi:thought-bubble",
         native_unit_of_measurement=CONCENTRATION_MICROGRAMS_PER_CUBIC_METER,
     ),
     SensorEntityDescription(
-        key=SENSOR_PM2_5,
+        key="P2",
         name="PM2.5",
         icon="mdi:thought-bubble-outline",
         native_unit_of_measurement=CONCENTRATION_MICROGRAMS_PER_CUBIC_METER,
diff --git a/homeassistant/components/luftdaten/sensor.py b/homeassistant/components/luftdaten/sensor.py
index aa4995490ca..5b02869c23d 100644
--- a/homeassistant/components/luftdaten/sensor.py
+++ b/homeassistant/components/luftdaten/sensor.py
@@ -1,22 +1,10 @@
 """Support for Luftdaten sensors."""
 from homeassistant.components.sensor import SensorEntity, SensorEntityDescription
-from homeassistant.const import (
-    ATTR_ATTRIBUTION,
-    ATTR_LATITUDE,
-    ATTR_LONGITUDE,
-    CONF_SHOW_ON_MAP,
-)
+from homeassistant.const import ATTR_LATITUDE, ATTR_LONGITUDE, CONF_SHOW_ON_MAP
 from homeassistant.core import callback
 from homeassistant.helpers.dispatcher import async_dispatcher_connect
 
-from . import (
-    DATA_LUFTDATEN,
-    DATA_LUFTDATEN_CLIENT,
-    DEFAULT_ATTRIBUTION,
-    DOMAIN,
-    SENSOR_TYPES,
-    TOPIC_UPDATE,
-)
+from . import DATA_LUFTDATEN, DATA_LUFTDATEN_CLIENT, DOMAIN, SENSOR_TYPES, TOPIC_UPDATE
 from .const import ATTR_SENSOR_ID
 
 
@@ -36,6 +24,7 @@ async def async_setup_entry(hass, entry, async_add_entities):
 class LuftdatenSensor(SensorEntity):
     """Implementation of a Luftdaten sensor."""
 
+    _attr_attribution = "Data provided by luftdaten.info"
     _attr_should_poll = False
 
     def __init__(self, luftdaten, description: SensorEntityDescription, show):
@@ -68,8 +57,6 @@ class LuftdatenSensor(SensorEntity):
     @property
     def extra_state_attributes(self):
         """Return the state attributes."""
-        self._attrs[ATTR_ATTRIBUTION] = DEFAULT_ATTRIBUTION
-
         if self._data is not None:
             try:
                 self._attrs[ATTR_SENSOR_ID] = self._data["sensor_id"]