Oreck XL Tabletop Professional Air Purifier - Black

6-stage air filtration with exclusive Truman Cell technology. Permanent lifetime filter - no expensive replacement filters to buy. Oxygenator converts ozone to oxygen. Cleans a 900 square foot room every hour. 3-Speed settings with Silence Technology. Indicator light turns red when the collector cell needs cleaning. Indicator light turns red when the optional odor absorber has been in use for 12 months. On/Off switch for night light. On/Off switch for Air Revitalizer. 3 year warranty plus lifetime warranty on the collector cell. Optional fragrance cartridges for aromatherapy. Dust brush for cleaning air intake and exhaust louvers. Energy efficient - consumes as much energy as a common lightbulb.