The Desktop HEPA Air Purifier from Lasko provides TotalProtect Filtration™ to protect your home from The Invisible 8 -- the top airborne irritants common in most home environments. True HEPA filtration captures 99.97% of airborne irritants, including allergens, smoke, odors, VOCs, pet dander, pollen, dust, and mold spores. This air purifier features simple electronic controls, 3 speeds, and an 8-hour timer. This small-size purifier gets big results -- it's capable of cleaning dirty indoor air quickly and efficiently. Plus, the auto check filter reminder helps you know the best time to change the filter. Comes with a filter pack that lasts up to 1 year and trusted safety fuse technology. Ideal for rooms up to 109 square feet. Tested with Staph Epidermidisa, Escherichia Coli, Aspergillus Niger, and MS-2