ARM & HAMMER Fridge-N-Freezer Baking Soda Deodorizer uses the power of pure baking soda to provide maximum odour elimination throughout your refrigerator and freezer to help keep food tasting fresher longer. This deodorizer uses an air filter to eliminate odours in the freezer, refrigerator or crisper and has an easy-to-apply suction cup that sticks to most refrigerators and freezers. The flow-through vented design delivers maximum odour control to provide up to 30 days of freshness. Put ARM & HAMMER to work all around your home! With its natural, pure and gentle cleaning power, there isn't a place in your home where dirt and odours are safe.