Activated carbon filter helps reduce odors, and the HEPA filter features a filterlife indicator that tells you when the filter needs to be changed. Filters come with microban, an antibacterial product protection, and are certified by AHAM.

Holmes HAPF600D True Hepa Replacement filters helps remove up to 99.97% of airborne particles as small as 0.3 microns from air passing through them, including different types of pollen, mold spores, household dust, pet dander and smoke. These filters are meant for Holmes® air cleaners but can be used in Bionaire® air cleaners as well.

Compatible with Honeywell 10500 and 17000 air cleaners, the Honeywell True HEPA filter is up to 99.97 percent effective at removing particles as small as .3 microns from the air. True HEPA filters collect such annoyances as dust, mold spores, mites, pet dander, and other troublesome allergens. The difference between a HEPA filter and an ionizer is that the former collects and removes the harmful particles from the air, whereas the latter merely displaces it and pushes it around the room. Overall particle reduction depends on many factors, including the amount of air processed, the pollutant type, and the pollutant's introduction rate in the environment.

This universal replacement carbon pre-filter helps capture large airborne particles before passing through the HEPA filter, thereby maximizing the HEPA filter life. The activated carbon pre-filter also helps reduce common household odors. It can be cut to make from 1 to 3 pre-filters, depending on the air purifier model, and it should be replaced every 1 to 3 months. It fits virtually all Honeywell Round, QuietCare and SilentComfort Series model air purifiers including: 10590, 17000, 17005, 17006, 18150, 18155, 50100, 50200-N, 50250-N, HFD-110, and more.