Tower air purifier powerfully cleans the air, eliminates odors and freshens the room with the pleasing scent of Febreze. HEPA-Type filtration captures up to 99 percent of airborne pollutants such as dust, pet hair/dander, pollen, smoke and odors as small as 2 microns. Dual Action Filter features a specially formulated carbon pre-filter that traps household odors. Handy indicator lights conveniently signal when it's time to replace the filter and/or scent cartridge. Scent control dial lets you adjust the refillable, fresh scent that's added to the filtered air to eliminate odors. Air purifier is designed for medium to large rooms up to 170 sq. ft.