Horizon Air Purifier Replacement Filter, Brondell, Mfr#: PHZF-21

The Brondell O2 + Horizon Replacement Filter includes a pre-filter, True HEPA, granulated carbon, and cold catalyst layers. The filter combines 4 filtration layers plus an optional ionization feature to create a 5-stage filtration system.• Replacement filter for the Brondell O2+ Horizon Air Purifier (P200) only• Filter combines 4 filtration layers plus an optional ionization feature to create a 5-stage filtration system for a cleaner environment• Includes pre-filter, True HEPA, granulated carbon, and cold catalyst layers• Filter contains over 650 grams of granulated carbon for powerful odor elimination• Granulated carbon traps odors, harmful gases, VOCs, and decomposing formaldehyde • Proud members of 1% for the Planet – Brondell donates 1% of annual sales to environmental nonprofits