Put the filter in the refrigerator freezer Nanvpak Persia, due to the elimination of bacteria , fungi, and gases such as ethylene, which is ripening, Kpkzdgy postponed and fruits, vegetables, protein and dairy products remained fresh longer and more to maintain freshness, they also maintain their nutritional value as well. The filter also eliminates unpleasant odors inside the refrigerator to prevent adverse effects on the food. Using four different filter layer, charging capability without the need for electrical light, lack of release of chemicals and long life benefits of this filter. This filter has two kinds of lives a year and two-year-long supply.