Unlike any other product on the market, 420 delivers The World's strongest odor eliminator in a dry, aerosol spray. It's the best way to eliminate smoke and other tough odors from any area. Shake and spray 420 as needed to kill the smoke smell and freshen the area. Also safe on hair and clothes. For use in upholstery, bedding, closets, bathrooms, smoking areas, A/C intake vents, autos, vans, RV's, and pet areas.