A true HEPA filter HoneywellTrue. 99.97% effective at removing particles as small as 0.3 microns from air passing through the filter.

Designed for ultra-quiet, high-speed air purifying, Honeywell SilentComfort HEPA air purifier removes at least 99.97 percent of airborne particles smaller than 0.3 microns from the sale of up to 225 square feet. The unit is not a draft technology provides efficient air cleaning of exhaust gases, without fresh air. Intelli-Check indicator lets you know when the filter should be cleaned. The SilentComfort also features two filtration systems, a true HEPA filter and a pre-carbon filter tha