Oreck AIR7L Super Air 7 Tabletop Air Purifier Tabletop air purifier designed to capture up to 95 percent of airborne particles in 30-by-30-foot rooms Permanent electronic filter grabs particles as small as 0.01 microns, around 1/1000th the width of a human hair Filters such annoyances as dust, lint, pollen, pet dander, smoke, mold spores, carpet fibers, and bacteria Electronic filter never needs replacing, just rinse and reuse; works for 24 hours a day, 7 days a week Includes charcoal filter to reduce household odors; measures 16.25 x 5.12 x 10.5 inches (W x H x D); 1-year warranty