Golden Bamboo, Activated Charcoal 600g- Air Purifying Bag/ Odor Eliminating Drying Bag (Gray) Golden Bamboo Bags are 100% natural air purifiers that will continually absorb odors, and excess moisture efficiently. Proven absorption and cleansing abilities by exceeding strict quality standards. They work great in bags, lockers,refrigerator,car,kitchen, bathroom,and any small area you need to remove smells from. Once a month, rinse and place bag outside in the sun for at least an hour to rejuvenate the charcoal Recyclable: can last up to 2 years with routine maintenance, for more details please see "Product Description" below.