palus Purifying Bags, available in three different sizes, is pure and simple as you see it. It is filled with bamboo charcoal, no more than that. The Apalus Purifying Bags are made from bamboo charcoal, which naturally absorbs and filters out harmful pollutants and odors, with noticeable effects in just a few days. Also absorbs moisture, reducing mold and mildew and prevents bacteria proliferation in damp areas of our home. With Apalus Purifying Bags no need for batteries or electricity! The Purifying Bags work for you 24 hours a day, 7 days a week, to continuously keep your air fresh, dry and odor free. Avoid perfumes, sprays or other chemical substances that can be harmful to your family and your pets!