The Winix 1712-0118-00 Replacement Filter R is a complete one-year filter. The Winix True HEPA Filter captures 99.99% of particles and impurities as small as 0.001 microns, including pollen, dust, pet dander and hair, allergens, and smoke. The Activated Carbon Filter uses an activated carbon coating to reduce large amounts of odor in the environment. The genuine Winix Filter R is compatible with Winix Air Purifier unit T810.