The Moso Natural Air Purifying Bag is the easiest way to maintain a fresh, dry and odor-free environment. Without needing batteries or wires, the Moso Bag continuously works to remove odors, harmful pollutants, and excess moisture from the air. The Moso Bag is a safe alternative to air fresheners which can be carcinogenic and lead to numerous health problems. This powerful deodorizer is filled with chemical-free and fragrance-free Moso bamboo charcoal that allows your family and pets to breathe safely.