diff --git a/custom_components/xiaomi_miot/core/device_customizes.py b/custom_components/xiaomi_miot/core/device_customizes.py
index 4d4c4ea4d..dd01f6192 100644
--- a/custom_components/xiaomi_miot/core/device_customizes.py
+++ b/custom_components/xiaomi_miot/core/device_customizes.py
@@ -1137,7 +1137,7 @@
     },
     '*.airpurifier.*': {
         'main_miot_services': 'air_purifier',
-        'switch_properties': 'air_purifier.on',
+        'switch_properties': 'air_purifier.on,alarm.alarm',
         'sensor_properties': 'relative_humidity,pm2_5_density,temperature,filter_life_level',
     },
     '*.bhf_light.*': {