Today only, save up to 33% on Airthereal Ozone Generators. Choose from several models including this one: the Airthereal MA5000 Commercial Generator 5000mg/h Ozone Machine, only $54.99 today. Ozone exists in the ozone layer region of the atmosphere to protect human beings from the sun’s ultraviolet radiation. We also sense its fresh and clean smell after thunderstorms. With Airthereal ozone generators, we use this nature’s powerful deodorizer