Here are the following things you can do to fix the Air Quality Indicator:
The AirSight Plus Laser Dust Sensor may need to be cleaned.
If you’re using an ultrasonic humidifier near the air purifier, the mist may affect the accuracy of the AirSight Plus Laser Dust Sensor. The sensor will detect the large mist particles, and the Air Quality Indicator may turn red. Avoid using an ultrasonic humidifier near the air purifier, or avoid using Auto Mode.
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