Sleek styling meets modern technology in the ConairPure™ Medium Room Air Purifier. Features: Four-Stage Filtration System: Prefilter catches large particles, activated carbon filter helps removes odors, true HEPA filter removes up to 99.5% of particles as small as 0.1 microns, positive and negative ion generator attracts and captures pollutants in the air (when used in accordance with enclosed Directions for Use). Fresh Air: Captures dust and dirt, volatile organic compounds, smoke, pet dander, and pollen. Quiet Operation: BLDC motor has three fan speeds. Slender Profile blends into every decor with thin design and neutral color. Replace Filter Indicator: Lights up when filter needs to be replaced. Dual Position Design: Use upright with included stand or lay it flat on its side. Filters 200 Square Feet: Perfect for bedrooms, playrooms, living spaces, offices.