Abstract: The present invention relates to an apparatus for the treatment of contaminated air or surfaces in order to remove or oxidize odoriferous gases and deleterious compounds therefrom through the utilization of ozone droplets, and more particularly pertains to the treatment of manufacturing facilities, wet wells, seage installations, buildings, equipment and industrial installations and diverse locales subjected to foul air, in order to remove noxious and potentially toxic vapors and impurities from the air or surfaces through the dissolution of ozone in water to form droplets, and spraying the resultant mixture into the air as a fine aqueous mist. Moreover, the invention is also directed to the provision of a process for eliminating odoriferous or noxious vapor gases and harmful constituents entrained therein from a volume of contaminated air or surfaces through the utilization of ozone dissolved in water by the employment of the inventive treatment apparatus.