When set to Auto Mode, the BISSELL air400 uses its CirQulate™ System to provide optimum filtration
based on the air quality in your home.
CirQulate™ uses the air400's PM 2.5 sensor to measure microscopic particles down to .3 microns, like
dust, pollen, and even smoke.
Then, CirQulate's™ air quality feedback display identifies the air quality of your home in real-time,
making your once invisible concerns visible.
PM 2.5
Air Quality
Good Air Quality
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System
PM 2.5
Air Quality
Moderate Air Quality
PM 2.5
Air Quality
Poor Air Quality
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