Good question.
Few manufacturers will give the ok to use their regs with mixes of more than 40% O2 unless they really expensive special color regs. Inever saw one of those silly things actually used but I have seen them in stores and catalogs.
One manufacturer put it to me this way...it's the service techs job to decide if thereg is O2 ready but their materials were appropriate.
The industry is just starting to come to terms with the fact that many of us use mixes all the way up to 100% O2.
That said, we've used lots of different brand regs with pure O2. If you do it, you may,of course, blow yourself up. If you take some tech classes, maybe a blending course and/or an O2 service tech course the subject will be covered. You might also get a copy of the O2 hackers handbook by Vance Harlow.
