i was referring t the O part of the mixture and potentially flammable electronics (minute spark?) but if it works..... who am I to judge
school also said my contacts would bond to my eyes welding, per my eye doc., b.s.
You are correct regarding electrical devices that are not protected inside a one-atmosphere housing. Housings are effective in N
2O
2 environments because the Oxygen permeability rate through transparent materials is virtually, if not actually, zero. There are probably some diving supervisors that would not be comfortable letting one in the barrel though.
Ambient O
2 levels never get very high except in one of those transparent one-person hospital torpedo chambers anyway. You have to keep the O
2 level low in a multi-person chamber for the off-O
2 periods in the tables, fire/explosion, for medical assistants, and in case of O
2 toxicity so you can pull the BIBS (Built-In Breathing System) mask — basically an oral-nasal mask with a demand regulator for treatment gases or emergency breathing.
That is not to imply that O
2 safety procedures are not critically important, just that the fire/explosion risk in a treatment chamber is not as extreme as a pressurized pure O
2 environment.
Sorry for skipping over your first post, just didn’t register the first time.