OSCILLATING AIR PURIFIER: This air purifier circulates air & helps capture up to 99% of airborne particles as small as 2 microns such as smoke, dust, pollen, and pet dander from the air that passes through the filter. PERMANENT FILTERS: This tower air purifier features 3 cleaning levels, on/off oscillation control & washable permanent pre-filter & Clean filter. It's Energy Star-certified for energy efficiency! HONEYWELL QUALITY REPLACEMENT FILTERS: The included filter helps reduce odors and VOCs. Each air purifier's performance is tested as a system with the filters for best efficiency. FILTER & CIRCULATE: Honeywell Air Purifiers filter & circulate air in the stated room size up to 5 times an hour. Breathe easy knowing the air in your home is fresher & cleaner with fewer allergens. HONEYWELL QUALITY: Improve your air quality & neutralize odors for a clean & healthy breathing experience year round with Honeywell replacement filters for air cleaners & purifiers.