GE PFTS06AA Manual Del Propietário página 8

Set up and Use
Air Quality Indicator Lights
This model has indicator lights which will change color according to the air quality detected by the air quality sensor.
Color of light Air Quality
White Excellent
Blue Good
Yellow Fair
Red Poor
The air quality indicator lights will not glow when the air purifier is in sleep mode.
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49-5000555 Rev. 1