Winix America 712180, Hepa + Carbon Combo Replacement Filter W for Aw600 Air Washer, 1 X 8.25 X 9.25 Inch, Solid, White 100% Hepa Imported Compatible with winix air Washer 712180 Aw600 HEPA plus carbon Combo, captures up to 99.5Percent of particles, allergens, smoke, and reduces household odors HEPA and carbon filter in one Genuine winix one year replacement filter For optimal performance, it is recommended to change the true HEPA + carbon Combo filter once every 12 months. Actual filter Life is based on environment This is a Winix America replacement part Part Number AW600 This is an O.E.M. part