First of all, if you are posting this intentionally in the disease and condition category you need to avoid ozone. If this is fire or smoke related use the ozone. Here is why, ozone is air bonded with a 3rd molecule of oxygen. That 3rd molecule will bind to organic matter, including moisture or water. When ozone comes into contact with moisture it produces a deadly bleaching effect. Your lungs, mouth, nose and eyes are extremely moist. If ozone is inhaled it can lead to very serious health implications. DO NOT USE FOR ANYTHING OTHER THAN SMOKE OR ODOR REMOVAL. I cannot stress the dangers of ozone enough.