Ozium® aerosol air sanitizer/freshener will effectively eliminate bad odors anywhere it s sprayed. Each use will release a pleasant fragrance that kills odor-causing bacteria and converts smoke particles into clean, fresh air. EPA registered. Proven effective by bacteriological laboratory testing and designed to reduce airborne bacteria, and eliminate smoke and other odors. Lighter-than-air particles remain in sprayed area for three to four hours. Not a masking agent; effectively sanitizes air.