Clean your air without having to worry about expensive replacement filter costs. The Honeywell Permanent HEPA Tower Air Purifier offers effective air cleaning with permanent filtration and little maintenance. The permanent HEPA-Type filter is certified 99% effective at capturing airborne particles such as dust pollen tobacco smoke cat dander and mold spores*. A washable pre-filter captures large particles. The air purifier operates quietly while changing the air in the room up to every 12 minutes+. For extra air freshening there's an ionizer which can be turned on or off as desired. The permanent HEPA filters are easy to clean - simply vacuum and replace back into the unit. The Electronic Filter Clean Indicator illuminates to remind you when to clean the filters. Recommended for medium size rooms. It's attractive slim tower design will look great in your home.