402S BlueAir The 402 Smoke unit uses a particle filter with active carbon.
This same filter technology earned the larger BlueAir units Best of Class ranking in independent AHAM testing of Clean Air Delivery Rates. 97% of the tiniest 0.
Value-adding features include quiet operation, low energy use, galvanized steel construction, a 3-Stage progressive filter, a warranty and easy maintenance: simply open the side, slide out used filters and drop in replacements every six months. The SmokeStop filter is recommended for use in rooms where heavy gaseous pollutants such as cigarette and cigar smoke or other VOC's are present. The 402 Smoke Unit effectively purifies air in rooms as large as 365 sq. ft. 1 micron particles on Speed One, including allergy-provoking pollen, dust mites, mold spores, and pet dander. Using patented 2-Stage HEPASilent™ technology, it captures 99.