Are you familiar with Air Filters? My mom bought an air filter for our refrigerator. We placed our Air filter inside our fridge to prevent any bad odors which definitely come from those food stocks that we have in the chiller. This air filter is also used to absorb moist that will prevent your refrigerator from rusting. Aside from the refrigerator, this air filtering system is also used for cars and even inside your house. This air filter will purifies the air, reduces pollen, dust, pet dander, mold spores, dust mites and other allergens from indoor air. Removing these airborne particles can help improve allergies and alleviate sinus irritation that can cause watery eyes, itchy throat, coughing, and sneezing. My younger sister has an allergy so I guess it is very advisable for us to have this kind of air filtering product in our house.