The HEPA (High Efficiency Particle Arresting) filter provides optimum filtration of pollen, dust, dander, and other respiratory irritants. HEPA removes a minimum of 99.97% of all particles greater than 0.3 microns in size. (A human hair is about 300 times too large to penetrate a HEPA.) Tested against 20 other air cleaners by an independent consumer organization, Austin's Healthmate HEPA filters rated best overall.
Return Policy: Manufacturer accepts returns up to 30 days after purchase. If you need to return the product, please call customer service at: 1-800-366-6056 for assistance.