Keep your refrigerator and freezer smelling clean with the Smart Choice PureAir(TM) Universal Air Filter. The PureAir(TM) air filter is designed with Carbon blocks to remove, not mask unwanted odors. The PureAir(TM) filter tested 7X better than the leading baking soda manufacturer in keeping the air in your refrigerator smelling fresh. The PureAir(TM) Refill Pack comes with two carbon air filters. *Filter housing not included