Blueair Blue 3210 Manual Del Usuario página 10

Air quality information
The air quality levels for particulate matter (PM) are indicated using a color scale on the air
quality indicator. The air quality indicator is
PM2.5, Particulate matter, particles with diameter of size 2.5 micrometers or less.
Air quality level (PM 2.5)
Polluted
Moderate
Good
completely dimmed in Night mode.
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