Stick it to those bad refrigerator odors with Fridge Fresh Refrigerator Air Filter. It eliminates odors to help foods taste fresher longer and exposes twice the baking soda vs. a 1 lb. box of baking soda. Filter absorbs and deodorizes food odor. Flow-through vented design delivers maximum odor control. Easy-to-apply suction cup sticks to most refrigerators. Use in the freezer, refrigerator and freezer. For best results, replace every 30 days.