| Imported post medical o2 is full of moisture. Not so good for your cylinders. Aviation o2 is cleaner. Industrial o2 can be just as clean or cleaner than 'breathing' o2. It's the testing procedure which differs-allowing the higher grade labelling and price of breathing gas-not the production method. Unless your using lots of nitrox it's not worth setting up your own. You need at least 2 cylinders or a booster to get decent value, and rental can be expensive. Getting gas suppliers to sell you gas is tricky too-most regional suppliers won't bother with such a small volume client and will often run a mile if you say your wanting to dive with their stuff. That said lot's of people do it.
(mate works for boc!) |