CLEANER AIR FAST: Purifies the air in large rooms up to 1,600 sq. ft. in just 30 minutes and 3200 sq. ft. in 1 hour at 420 CFM (Cubic Feet per Minute). QUIET: Low noise from 22 Decibels on level 1 (inaudible) - 59 Decibels on level 10 (refrigerator).
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