Honeywell HRF-F1 Long Life True HEPA Replacement Filter, Type FThe Honeywell Universal True HEPA Replacement Filter is fully capable of capturing up to a staggering 99. 97% of particles such as household dust, smoke, pollen, mold spores and pet dander. This package includes 1 HEPA filter and 1 gasket and is compatible with most Honeywell towers and tabletop air purifiers. It is recommended that each filter be replaced every 3 to 5 years for optimal use. Establish an unrivaled breathing experience for you and your