5EN
3 Using the air purifier
Air quality light
After approximately 30 seconds, the particle sensor selects the color that corresponds to the
surrounding air quality of airborne particles�
Note: The color of the air quality light is determined by the highest risk index among PM2�5, IAI and readings�
IAI refers to the level of indoor air allergen�
IAI level Air quality light color Air quality level
1-3 Blue Good
4-6 Blue-purple Fair
7-9 Purple-red Poor
10-12 Red Very poor
PM2�5 refers to airborne particle pollutants smaller than 2�5 micrometers�
PM2�5 level Air quality light color Air quality level
≤12 Blue Good
13-35 Blue-purple Fair
36-55 Purple-red Poor
>55 Red Very poor
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