Product review (1 stars): Don't bother
After three years I had never really looked at, let alone replaced, the air filter in my fridge. I ordered these without really investigating. When I took a minute to change the filter, I saw that they are essentially a piece of carbon impregnated fabric or paper that just site in a slot in the fridge door. There is no system to actually pass air over the filter. Totally useless. I suppose having a piece of activated carbon on the fridge might absorb odors passively, but so does a box of baking soda.