Blueair is the system for people living with allergies, asthma, or other respiratory conditions, or for anyone who wants cleaner, more breathable air. The 501 with SmokeStop Filter effectively purifies air in rooms as large as 550 square feet. Using patented two-stage HEPASilent™ technology, it captures 99.97% of the tiniest .1 micron particles, including allergy-provoking pollen grains, dust mites, mold spores, pet dander particles, and tobacco smoke particles. .

Our efficient SurroundAir™ vent system delivers exceptional air exchange (up to 500 cubic feet per minute) without annoying drafts, performance that earned the 501 Best of Class ranking in independent AHAM testing of Clean Air Delivery Rate.

The SmokeStop Filter combines the particle filter with an enhanced active carbon filter for heavy-duty odor control. This filter is best suited for use in areas that may fill with heavy gaseous pollutants, such as cigarette and cigar smoke.

Easy maintenance: simply open the unit's lid, lift out and drop in filters every 6 months.

• Size of Product (inches): 26H x 20W x 13D
• Size of Product (mm): 660H x 508W x 330D
• Product Weight: 35 lbs. 15.5 kg
• Room Size: 500 square feet 46.5 square meters