Austin Air A250B1 B0077TBB8C, Junior 30 sq. ft. true HEPA medical filter medium - filter only needs replacing every 5 years. Meets HEPA standards, trapping 99.97% of all particulates larger than 0.3 microns. 6.5 lbs of solid activated carbon and zeolite for odor and gas removal. 3 Speeds - 200cfm on high setting: cleans a room area of up to 700 ft. Color: Black