High-efficiency air purifier helps remove up to 99 percent of airborne particles & allergens from indoor air. Carbon filtration reduces unpleasant odors. Dual-position, slim design sits perfectly on your table or desktop. Filter change indicator notifies you when it's time to change the filter. Durable, three-speed motor lets you adjust the setting for customized control. HEPA-type filter captures particles as small as 2 microns so you can breathe comfortably. Air purifier operates quietly & is designed for use in rooms up to 110 square feet. It includes one Aer1 filter featuring the odor-eliminating power of Arm & Hammer baking soda.