Keep your Amaircare Room Aid air filtration unit (purchase separately) working at maximum efficiency in a car, truck or motor home or in a motel, hotel, office or small bedroom. Protect the expensive HEPA cartridge and get the maximum air purification from your air purifier by changing filters at 6 month or 12 month intervals. The Roomaid annual filter kit contains two pre-filters and three carbon filters. Prefilters are washable. Carbon filters cannot be washed.
