diff --git a/homeassistant/components/homekit/type_sensors.py b/homeassistant/components/homekit/type_sensors.py
index 594d95494f1..7e9b4cbbb31 100644
--- a/homeassistant/components/homekit/type_sensors.py
+++ b/homeassistant/components/homekit/type_sensors.py
@@ -11,7 +11,6 @@ from homeassistant.components.binary_sensor import BinarySensorDeviceClass
 from homeassistant.const import (
     ATTR_DEVICE_CLASS,
     ATTR_UNIT_OF_MEASUREMENT,
-    DEVICE_CLASS_CO2,
     STATE_HOME,
     STATE_ON,
     TEMP_CELSIUS,
@@ -76,7 +75,6 @@ BINARY_SENSOR_SERVICE_MAP: dict[str, SI] = {
     BinarySensorDeviceClass.CO: SI(
         SERV_CARBON_MONOXIDE_SENSOR, CHAR_CARBON_MONOXIDE_DETECTED, int
     ),
-    DEVICE_CLASS_CO2: SI(SERV_CARBON_DIOXIDE_SENSOR, CHAR_CARBON_DIOXIDE_DETECTED, int),
     BinarySensorDeviceClass.DOOR: SI(
         SERV_CONTACT_SENSOR, CHAR_CONTACT_SENSOR_STATE, int
     ),