From Cuisinart, this air purifier features: Up to 1,000* square feet 2x every hour and up to 500 square feet 4x every hour Four (4) combination H13 high-grade HEPA/active carbon filters 450 CADR and Energy Star Certified Four (4) washable, removable metal pre-filters UV-C light disinfection protection 2,500-hour runtime rated filter system 360-degree, 4-sided air intake Illuminated touchscreen controls Filter replacement indicator Child safety lock 12-hour timer Sleep mode/night light 4 fan speeds 3-year limited warranty Approx. 10.5" L x 23.25" H Imported.