I had about 10 or 15 treatments in a hyperbaric chamber about 2.5 years ago - the lady who did this (ex-nurse) only charged $50 - but I cannot say that I felt a big difference at all - I may have had positive affect but not that I could easily determine.
I stopped having them because on my last visit, for some odd reason, all of a sudden I became so claustrophobic (sp?) and I thought I was going to die - she could not open the chamber right away - I had to wait for her to slowly get the level down and the only way I survived was by closing my eyes and trying very hard to use psychology and visualization - I will never, ever again get into another chamber, even for free.
I am looking into ozonating machines for the body - I have the water ozonator.
Take care - good luck.