Honeywell HFD-120-Q Tower HEPAQuiet Air Purifier with Permanent IFD Filter, Black for $127.94

Designed to purify air in small and medium-size rooms up to 186 square feet, the Honeywell Tower air purifier offers two-stage cleaning for healthier lungs and tidier rooms. The permanent, washable pre-filter catches larger particles that'd otherwise clog the IFD filter for persistent small-particle filtering and cleaner air. Best of all, the pre-filter never needs to be replaced for easy, cost-free maintenance. The purifier's IFD filter removes 99.97 percent of all airborne particles that pass through, such as pollen, cat dander, household dust, tobacco smoke, and mold spores.