501S BlueAir 1 micron particles on Speed One, including allergy-provoking pollen, dust mites, mold spores, and pet dander. ) without annoying drafts.
Value-adding features include a warranty and easy maintenance: simply open the unit's lid, lift out and drop in filters every six months. The 501 Smoke Unit uses a particle filter with active carbon. ft. ft. 97% of the tiniest 0.
Our efficient SurroundAir™ vent system delivers exceptional air exchange (up to 500 cu. per min. 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 501 Smoke Unit effectively purifies air in rooms as large as 620 sq.