500g Jalousie Air Purifying Activated Bamboo Charcoal Bag Odor Removal for Kitchen Pet Car Closet Basement Prevent Mold Mildew Dehumidify- Hook Included for Hanging (Blue) Remove unpleasant odor for the kitchen and refrigerator, the bedroom closets and clothes drawers, the bathroom, basement, pet space, and car. Remove excess moisture to prevent mold mildew Remove odor and excess moisture physically instead of chemically -- best safe and healthy way recharge under direct sunlight for two hours every month or more frequently and Reuse up to two years and recycle directly to your garden Typically a 500g Jalousie bamboo charcoal bag will cover up to 250 sq ft; a 200g bag can be used for up to 100 sq ft. For faster results, we recommend doubling or tripling the number of bags by placing them evenly throughout the space so there is better contact with the air flow.