This high-performance True Air Air Purifier from Hamilton Beach provides complete air protection for pet owners. Its filtration system eliminates pet odors and captures 99% of dander and airborne particles as small as 5 microns. It effectively cleans large 180 sq. ft. rooms. It features a permanent HEPA-grade filter that vacuums clean and quiet operation with Energy Star efficiency. Three-speed dial and On/Off ionizer button. Permanent filter saves time and money and Energy Star efficiency saves energy costs.