AF-1 air filters help eliminate these and other odors by capturing them in its’ carbon filter element. The included peel and stick foam tape makes it easy to attach the unit to any inside wall of your refrigerator. Side walls work best, midway between the door and back wall. Then make it a point to change your refrigerator air filter when you change your refrigerator water filter. This WaterSentinel® air filter can be used in any make or model refrigerator or freezer.