Ofeely Air Purifying Bag 500g Natural Bamboo Charcoal Deodorizer Naturally Removes Odor (Light Grey) The Ofeely Bag 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, allergens and harmful pollutants. 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.