The Radon utilized by the OCN-K Onnetsu device promotes the immune system and gives long term beneficial effects of chronic pain relief to those experiencing disease or injury.1
The emission of Radon from the OCN-K is intentional and its output is very minimal, strictly under life harming threshold. It is widely known that large amounts of radiation are harmful to human bodies. However, small amounts are actually beneficial to us. This is best explained by the hormesis phenomenon, which is a term used by toxicologists to refer to a biphasic dose response to an environmental agent characterized by a low dose stimulation or beneficial effect and a high dose inhibitory or toxic effect.2
There are a number of ‘Radon’ spas around the globe, most notably in the US, Germany and Japan. A well-known radon spa in Japan called Misasa Spring emit miniscule amounts of radon and has helped cure countless number of people ill with diseases and the hospitals use similar radiation treatments for the patients.
1 http://www.gastein.com/en/radon-gallery-austria, http://www.radonmine.com/why.php