Ofeely Bamboo Natural Charcoal Air Purifiers bag Odor Eliminator for Home/Car/Office (500g, Gray) The Ofeely charcoal air purifier is the easiest way to maintain a fresh, dry and odor free environment. Fragrance Free, Chemical Free and Non-Toxic, the natural moso bamboo charcoal will and effectively absorb odors and air freshener, allergens and harmful pollutants. The Ofeely charcoal air deodorizer bag can prevents mold, mildew and bacteria from forming by absorbing excess moisture . Reuse for up to two years, to rejuvenate just place the bags outside in the sun once a month for about an hour. The powerful bamboo charcoal is sealed inside a beautifully stitched linen bag. It is safe to place on any surface or material.