Commercial Fridge-N-Freezer Odor Absorber is ideal for restaurants and institutional kitchens. Pop in just one box in your refrigerator or freezer to stop odor. It absorbs and deodorizes food odor. Odor Absorber is made with baking soda that is 100 percent all-natural and free of harsh chemicals. Dual-panel, flow-through vents deliver maximum odor control. It helps keep food tasting fresh, longer. For best results, replace every 30 days.