🟢Compatible replacement: The HEPA Filter specifically designed for Bissell Personal MYair 2901, 2780, 2780A, 2780B, 2780P, 27809, 3329 Air Purifier. 🟢❌NOT Compatible with MYair Pro 3069, MYair HUB 3389 Air Purifier. 🟢3-in1 Filtration: Filter replacement is 3-in-1 True HEPA Filtration System: 1) Washable Removable Nylon Pre-filter; 2) True HEPA Filter; 3) Activated Carbon Filter. 🟢Easy Installation: The True HEPA filter are designed for easy installation. They can be easily accessed and replaced. The best performance of the filter, it is recommended to replace it every 6-8 months. It’s a ideal product for you to improve your quality of life and get a better breathing experience. 🟢What In Box: 2 x HEPA Filters. Bissell 2801 3-in-1 True HEPA + Activated Carbon Filter Compatible Replacement for Bissell Personal MYair 2901, 2780, 2780A, 2780B, 2780P, 27809, 3329 Air Purifier