Area of coverage: 300 sq. ft. with 8' ceiling, will last 4 to 6 weeks, 8 oz. - 8OZ SPONGE AIR FRESHENER: Odor absorber. Nontoxic, environmentally safe, biodegradable. For fresh clean air indoors. Absorbs pollutants and removes odors. Eliminating odors such as tobacco smoke, cooking odors, pet smells, paint fumes, cleaning solvents, wet carpets, gasoline, mildew, etc.