Air purifiers have a fundamental flaw. They rely on air being pulled through the unit in order to clean it. This creates an ineffective, high energy cost air purifier. The Air Oasis AO1000 air purifiers utilize a new generation of technology. This technology does not reply on filters or air passing through the air purifier. This new technology simply produces a blanket of redundant oxidizers that not only clean your air, but sanitize surfaces as well. Features This air purifier quickly and effectively reduces carbon-based contaminants, providing fresh, clean smelling air in only minutes. Eliminates oders left behind from cigarette smoke. Cleans up to 1000 square foot area Uses AHPCO (advanced hydration photocatalytic oxidation) technology developed by NASA Made in USA Watts: 15