The Brondell O2+ Halo Filter Upgrade Advanced Deodorization Set Replacement Pack includes one True HEPA filter and one granulated 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.
Product Features:O2+ Halo Filter Upgrade Advanced Deodorization Pack intensively removes odors from pets, cooking and smoke as well as effectively removes allergens like dust, pollen, pet dander, mold, VOCsTrue HEPA and Upgraded Activated Granulated CarbonFilter set lasts 12 monthsPack includes: 1 True HEPA and 1 granulated carbon filterFilter pack is compatible with all O2+ Halo air purification modelsIncludes 1 True HEPA and one granulated carbon filter, owner's manualWarranty: 30 days(Model PHF-15)