If your air quality is consistently showing as poor, it’s likely that the air quality sensor needs to be cleaned. The inlets on the air quality sensor are located on the left side of the device. It’s important to clean the inlets and the sensor when changing the filter or when the device shows consistently poor readings.
Turn of the device and unplug the cord.
Remove the cover of the air quality sensor.
Gently vacuum the inlets with a soft brush attachment and clean the sensor with a cotton swab.
Close the cover and plug the device back in.