The Brondell O2+ Halo Filter Replacement Pack, Standard includes one True HEPA filter and one woven carbon filter and works with all O2+ Halo Air Purifier models. The O2+ Halo will indicate when it is time to change the filters, which is recommended once a year.
O2+ Halo replacement filter pack is great for removing allergens like: dust, smoke, pollen, pet dander, odor, mold, VOCs
Filter set lasts 12 months (1 year)
Pack includes: 1 True HEPA and 1 woven carbon filter
Filter pack is compatible with all O2+ Halo air purification models