Ozone is an effective solution to eliminate cigarette odor in both homes and vehicles. Cigarettes contain more than 4,000 chemicals, including more than 60 carcinogens. Therefore, tobacco smoke emissions is an aerosol that contains approximately 17 chemical classes. The main components are carbon monoxide and hydrogen cyanide. Ozone breaks down long-chain hydrocarbons into simpler complexes and converts back to oxygen. Ask yourself these questions to eliminate cigarette odor in a home: 1. Are household surfaces clean, which means there is no visible residual matter from cigarette emissions? If you are not sure, we recommend cleaning the walls with soap and water. You will be surprised by what you find. Then vacuum and shampoo the rugs and rub the floors with vinegar. The effectiveness of the cleaning will be a direct reflection of the results of the ozone generator. Ozone's duty is to oxidize surfaces and the air space that is exposed to the odor. If you smoke a lot, we also recommend that the duct system be cleaned properly as the containers are often kept there. Do not use any type of air freshener beforehand, such as candles, sprays, or scented pots. 2. Are you available to be away from home for more than 2 hours per day? Ozone takes time to develop to a concentration level to eliminate odor. Although ozone is a very powerful oxidant to kill microorganisms, the same properties make humans inhale at high concentrations (shock treatment). We suggest that people wait at least 2 hours before returning to the treated airspace. Ask yourself these questions to eliminate cigarette odor in a vehicle: 1. Has the vehicle been detailed and visibly clean with no offensive residual residue? We suggest that a vehicle be professionally detailed with products that deeply clean surfaces. It is imperative that the odor be removed, whatever it is, (i.e., a fast food bag with moldy food, sweaty gym clothes, smoking ashes, etc.) 2. If applicable, has the carbon filter been replaced? Many times odors will be trapped by this and must be replaced every year. * Note: The 2 most protective areas for vehicle odor are under the seat (soft porous material) or headliner.