?High-Quality Replacement Hepa Filter Kit ( High Efficiency Hepa Filter + 4 Carbon Pre-Filter) | | ?Compatible With Oreck Wk15500B Air Refresh 2-In-1 Air Purifier Humidifier, Part# Ak45510 Type Ak | | ?Hepa Remove Large And Airborne Particles, Including Dust, Common Pollutants ,Carbon Pre-Filter Reduce Chemicals Vocs, Tobacco Smoke, Pm2.5,Common Household Bad Smell | | ?Please Replace Regularly To Keep Your Machine Fresh And Clean,For Best Results, Remove The Filter Once A Month And Clean With A Soft Brush Or Gently Vacuum. | | ?Top-Notch Quality Used For Maximum