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