Get a breath of fresh air with the Medify Air MA-112 Air Purifier the perfect solution to aiding your indoor air quality. This air purifier for extra-large rooms can clean up to 4 180 square feet in an hour. Equipped with three layers of filtration including a pre-filter True HEPA H13 and an active carbon composite for odors this large air purifier removes up to 99.9% of particles down to 0.1 microns. This whole-room air purifier aids against dust pollen smoke and other small particles you can t see. The high-grade HEPA filters clear the air you breathe so your home is not filled with harmful pollutants and allergens. This air purifier for schools offices hospitals and other large spaces has a timer for 0?8 hours 4 fan speeds touch controls and a child lock for ease of use.