Incredible three-stage cleaning power including 3M™ Filtrete™ filter technology to remove dust, smoke, pollen and other allergens; traps particulates down to .01 microns. On/off switch to activate ionization and odor reducing carbon filter. Filter included, replacement sold separately. Three fan speeds. Includes convenient carry handle. Air Cleaner Machine Type: Filtrete™; CADR: 143; Maximum Room Size (Square Footage): 192 sq. ft.; Maximum Room Size: 12 ft. x 18 ft. Manufacturer's five-year warranty.