503 BlueAir This same performance and filter technology earned earlier BlueAir units Best of Class ranking in independent AHAM testing of Clean Air Delivery Rates. ft.
The 503’s efficient SurroundAir™ vent system delivers exceptional air exchange (up to 450 cu. ft. The NEW Blueair 503 Air Purifier effectively purifies air in rooms as large as 580 sq. per min. 1 micron particles on Speed One, including allergy-provoking pollen, dust mites, mold spores, and pet dander using patented 2-Stage HEPASilent™ technology and 3-stage progressive filter structure. 97% of the tiniest 0. It captures 99. ) without annoying drafts.
Value-adding features include quiet operation, low energy use, galvanized steel construction, a 5-year warranty, and a convenient Change Filter Indicator that reminds you to change your filters every six months.