Honeywell HRFD1 Replacement HEPA Filter, White, HWLHRFD1, HWL HRFD1, True HEPA filters capture up to 99.97 percent of microscopic particles such as household dust, smoke, pollen, mold spores and pet dander. Long-life design only requires replacement every three to five years. Patented SurroundSeal Technology protects against air leakage around the filter for maximum efficiency. Stack multiple filters for larger models. Filter and included gasket are designed for use with Honeywell Air Purifiers 10500, 17000, 17005, and 17352. UPC Code 090271000410, Quantity 1 EA