WINIX C610 4-Stage True HEPA Air Purifier With Wi-Fi and Additional Filter Features: Up to 2 Years of Filtration: Two All-in-One Filters Included AHAM Verifide 380 sq. ft.: Cleans Rooms up to 1840 sq. ft. in 1 Hour Winix True HEPA: Captures up to 99.99%* of Airborne Allergens Including Pollen, Smoke, and Pet Dander Auto Mode: Built-in Air Quality Sensor Measures and Adjusts Fan Speed in Real-Time Air Quality Indicator: Visual Indicator Displays Real-Time Air Quality in the Room C610 Features