HKT Bamboo Charcoal Activated Carbon Air Freshener Odor Deodorant Bag for Car and Home (4 packs*100g) Naturally helps remove odors, bacteria, harmful pollutants and allergens. Dehumidifies to prevent mold, mildew, and excess moisture. 100% natural bamboo charcoalbamboo charcoal can increase the amount of negative ions in the air, create a good physical and mental health work, living environment. Fragrance free, non-toxic, eco and pet friendly. Perfect for car, kitchens, basements, bedrooms, living areas.