Ozone does some cool stuff...Lets say you have a stubborn owey on your leg.. the dumb thing wont heal... .. placing oxygen over it can do wonders.. Lynn had such a thing it would not heal a doctor took a clean heavy plastic trash bag wrapped it around her leg put the oxygen hose under the cuff of her jeans.. the healing started a real difference the second day .. She did this at work.. oxygen is h2o if i remember correctly ozone is h3o .. not something we want to breath, i think there could be something to this.. producing ozone is not expensive...