On Friday, October 4, 2019 at 8:16:46 AM UTC-7, Tango Whisky wrote:
Le vendredi 4 octobre 2019 14:45:05 UTC+2, Jonathon May a écritÂ*:
That seems reasonable,I had 200Bar bottle pressure.

That's what I figured. Freeflowing oxygene at 200 bars is no place to be. It would spontaneously combust any grease in its reach.
Oxygen enhanced air is regularly used in diving to reduce issues with nitrogen saturation. It's often called Nitrox. https://en.wikipedia.org/wiki/Nitrox

Same issues apply with oxygen toxicity, etc. but oxygen enhanced air allows for increased numbers of dives during many recreational dive situations. Oxygen percentage is typically bumped up to 32% or 36% and all modern dive computers have the ability to factor this into dive profiles.

So yes, most dive shops do have oxygen on site. I haven't used a dive shop for an O2 fill, but I to take bottles to the shop to get them hydro tested.

Cheers,
Craig