I see you may be interested in a medical grade ozone generator? If you are still looking I would recommend taking a look at what Promolife.com has to offer. We offer complete Steam Sauna and Ozone Packages , as well as Ozone Generators sold separately if you already have the sauna which it appears that you do.
Those ozone generators linked above are both medical grade, but remember the key to having medical grade ozone is to use an oxygen concentrator or oxygen tank (if your a doctor) in order to use pure oxygen to make ozone. Good Luck, and if you have any questions don't hesitate to call for more info 1-888-742-3404.