Humifilter Cooler Filters are a free hanging filter made from natural minerals and breathable materials. Used in walk-in & reach-in coolers and freezers, Humifilter absorbs excess moisture, controls humidity, and removes ethylene gas and odors. Each filter is specifically designed for either the food or floral industry. This is accomplished by using Humifilters exclusive all natural mineral called Trilite that is one of the most absorbent minerals in the world. Humifilter Cooler Filters are used in coolers and freezers in the restaurant, grocery, convenience, schools, hospitals, hotels, floral Industries.