501SR BlueAir per min. 1 micron particles on Speed One, including allergy-provoking pollen, dust mites, mold spores, and pet dander. If you want a BlueAir Air Purifier at an affordable price, the factory reconditioned units are a great choice. 97% of the tiniest 0. Units are less than two years old, and are thoroughly inspected by BlueAir. The 501 Smoke Unit effectively purifies air in rooms as large as 620 sq. 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. ft. ) without annoying drafts.
The 501 Smoke Unit uses a particle filter with active carbon. BlueAir reconditions the units under strict factory specifications and assures BlueAir quality by replacing faulty parts with new, genuine BlueAir components. Using patented 2-Stage HEPASilent™ technology and the 3-Stage Progressive Filter structure, it captures 99. These units are backed by the standard Blueair warranty and are in 100% working condition.
Value-adding features include a warranty and easy maintenance: simply open the unit's lid, lift out and drop in filters every six months. ft.