Product review (4 stars): Frost does not build up inside freezer
I am using the Mat in a mini-refrigerater approximately 3 feet tall. It has stopped all frost from building up in the small freezer section. However, the freezer section hangs free in the refrigerator, and the outside of the freezer area is still building up frost. Twice a week I wipe down this area to remove the ice that has built up.