An ozone generator is a device that generates trioxygen gas for the purpose of disinfecting both air and water. Ozone or O3 is a powerful oxidizing agent that can kill germs, mold, and viruses. Medical Ozone is not harmful to animals or humans, unlike industrial ozone, as it is released ant small amounts and is regulated. H2O Ozone Sanitation is better at removing toxins than chlorine and doesn’t stay in the water as long. Ozone works very much the same as a UV light, by killing harmful bacteria and viruses. It operates within a predetermined spectrum to only eliminate harmful bacteria without killing beneficial bacteria.