[miot air purifier] Return None if aqi is 1 (#930)

* Return None if aqi is 1 * Add comment * Black
rytilahti · Feb 6, 2021 · 8e805e3 · 8e805e3
1 parent 5730f53
commit 8e805e3
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/miio/airpurifier_miot.py b/miio/airpurifier_miot.py
@@ -84,6 +84,10 @@ def power(self) -> str:
     @property
     def aqi(self) -> int:
         """Air quality index."""
+        # zhimi-airpurifier-mb3 returns 1 as AQI value if the measurement was
+        # unsuccessful
+        if self.data["aqi"] == 1:
+            return None
         return self.data["aqi"]
 
     @property