MADE TO FIT PERFECTLY: these replacement active carbon filters to be compatible with air purifiers AC2889/10, AC288710, AC2882/10,AC3829/10, active carbon filter FY2420 / 30, filter FY2422 / 30. LONGER LIFE FOR YOUR HEPA FILTER: Our active carbon per-filters take on most of the work of removing odors and particles from your air so that your HEPA filters don't have to do as much work. This makes your HEPA filters last longer and saves you money since you don't need to replace them as frequently. GETS RID OR SMELLS, ODOR, AND LARGER PARTICLES: The activated carbon in our filters does a great job of removing bad odors and smells from your air. The filter also removes larger dust, smoke, and pollen making it a must-have if you want a fresh, odorless home. VALUE IN EVERY PACK: Every purchase you make from us gets you premium quality replacement active carbon filters at a fraction of the cost. They deliver as excellently as the part number filters, and from having to worry about buying a