Nature s Air Sponge contains a soap based gel with activated charcoal. When opened the two components work together to dissipate a stream of lighter than air molecules into the environment interacting with and neutralizing odor and pollutant molecules. This creates a pure fresh healthy air quality. Covers up to 300 square feet with an 8 foot standard ceiling. Lasts up to Three Months. Scent: Neutral; Physical Form: Gel; Application: Odor Control; Capacity (Volume): 16 oz.