diff --git a/custom_components/xiaomi_miot/core/device_customizes.py b/custom_components/xiaomi_miot/core/device_customizes.py
index 91d9d8491..3143b080d 100644
--- a/custom_components/xiaomi_miot/core/device_customizes.py
+++ b/custom_components/xiaomi_miot/core/device_customizes.py
@@ -1316,6 +1316,10 @@
         'brightness_for_on': 0,
         'brightness_for_off': 2,
     },
+    'zhimi.humidifier.cb1:water_level': {
+        'state_class': 'measurement',
+        'unit_of_measurement': '%',
+    },
     'zhimi.humidifier.*': {
         'sensor_properties': 'water_level,actual_speed',
         'switch_properties': 'alarm,other.clean,humidifier.dry',