Provides up to 20 hours of quiet operation without refill with a 1.2 gallon capacity tank. Features a motor-driven impeller which draws up water through its pickup tube and propels the water by centrifugal force against the screen to provide a fine vapor. The vapor is then whirled through the Cyclone Misting Chamber to provide a superfine mist. Prevents dryout damage to plants and furniture. Also features the exclusive Kaz DynaFilter Air Cleaning Filter which removes dust, pollen, odors, and tobacco smoke from the room air, removing 93% of particles as small as pollen. Weighs just 4lbs. 2 year limited warranty.