Keep your refrigerator and freezer smelling clean with the PureAir™ Universal Air Filter. The PureAir™ air filter is designed with Carbon blocks to remove, not mask unwanted odors. The SCPUREAIRU has an adhesive backing and can be used in any refrigerator, freezer, laundry room, locker room or closet. SCPUREAIRU is a starter pack that contains one filter and one housing. Perfect for top-mount refrigerators and freezers. The PureAir™ filter tested 7 times better than the leading baking soda manufacturer in keeping the air in your refrigerator smelling fresh. PureAir™ starter kit includes: 1 Housing 1 Filter No tools required for installation.