The silent corona discharge method consists of a unit with these parts--dust filters, gas dryers, a source of oxygen, a generator, a contact unit and torch destructor. Dryers and filters clean the oxygen. The ozone is generated from the cleaned oxygen by electrical discharge just like lightning. By splitting the oxygen and creating single molecules, the single molecules can attach to oxygen (O2) and create O3. The O3 is then discharged into the room.
Ozone generators are controversial. While useful in industrial (purifying water, bleaching wood pulp, detoxifying cyanide waste) and medical applications (killing bacteria, viruses, odors) where strict standards are followed for manufacturing and using the generators, the use of ozone in smaller home or personal devices could be harmful. Those used in industrial and medical settings are used in unoccupied situations.
Ozone can cause respiratory irritation so when a device is used in a confined space the device should follow Food and Drug Administration guidelines. Public health standards have been set that indicate the maximum amount of ozone that is safe for humans to interact with.
For an ozone generator to produce enough ozone to kill bacteria and viruses, it must exceed the public health standards.
If done properly, ozonated water can actually 'hold' ozone for a short period of time. With the proper use of a high purity, high output (medical) ozone generator, and if the ozone is bubbled through the water long enough, this ozonated water can contain significant levels of ozone bonded to the water. This ozonated water, is beyond pure. Full of ozone and oxygen, this ozonated water is used topically as a healing and antibacterial / antifungal agent, on burns, scrapes, bruises, in dentristry, surgery, and many other applications. If you drink this water, you are actually drinking 'ozone'.
This link will give you lots of detail on ozone reactions with human skin:
Thanks for your answer. However, you did not mention the “by-product” (oxides of nitrogen) in using corona method and did not answer the related questions. Could you go back and do it again? Also, if you need to charge me for AU$30, please do not go further. Sorry and thanks. ]]]]
Skeptics of ozone therapy argue that the evidence supporting its therapeutic benefits is largely anecdotal, and point to the fact that ozone is a toxic gas classified as an environmental pollutant which presents health risks to those with cardiopulmonary and respiratory disorders. The strongest point of view against this therapy is a concern that ozone readily degrades into unstable oxygen atoms that will seek to gain electrons by pairing, or oxidizing, with other molecules.
Proponents of this form of therapy, however, maintain that ozone atoms retain their ion characteristics rather than behaving like free radicals. This means they will target and oxidize with molecules that lack glutathione peroxidase and other protective enzymes and destroy them, namely those found in foreign bacterial and viral cells.
Treatment with ozone involves very specific dosage concentrations and various methods of administration. These include autohemotherapy, or the reintroduction of ozone-infused blood, rectal, vaginal, or auricular insufflations, intramuscular injections, and ozonated water or steam. Topical applications consist of ozonated ointments or salves made from olive, hemp, or avocado oil.
In the U.S., the Food and Drug Administration (FDA) strictly prohibits claims that ozone therapy can prevent or cure any disease. However, the FDA permits the use of ozone as a germicide in the food processing industry and numerous states have adopted legislation making the medical use of ozone legal.
Ozone therapy is widely practiced in most European and Mediterranean countries.