Keep refrigerators smelling fresh with this unscented baking soda air filter, designed specifically for small food spaces. The suction cups on this baking soda filter grip firmly to surfaces, allowing you to place it close to the source of foul odors. The flow-through design of this Arm & Hammer baking soda air filter exposes twice the amount of baking soda to the air than a 1-pound box, ensuring faster, more efficient freshening. Eliminate refrigerator and freezer odors and keep food fresher longer with this convenient baking soda air filter. Super grip suction cup adheres virtually anywhere to get the baking soda up into the airflow and closer to the source of odors. Passive, flow-through vented design for maximum odor control. Sold eight per carton. For best results replace every 30 days. Built-in replacement indicator. Absorb fridge and freezer odors with this 8-count of Arm & Hammer Fridge Fresh unscented baking soda air filters.