Ozone generators remove viruses, bacteria and odors without the use of chemicals. Ozonators are used in medical, rehabilitation facilities, schools, kindergartens, offices, meeting rooms, canteens, hotels, repair shops, train cars, cruise ships, and so on. ATTENTION. Being indoors when the air is ozonated and breathing ozone is strictly FORBIDDEN. After ozonating the room, wait at least 30 minutes before returning to the room.