Where can I rent oxygen cylinders for medical use?

Look for local gas filling stations where you can rent them. And it's easy to fill, usually around $5 for 1 day. Oxygen costs around $10 a bottle.

Renting bottles off-site is better than buying a set. The price is not expensive 600 yuan or so a set.

The effect of OxyContin is too different from that of medical oxygen. 。。。。 I'm not sure if I'm going to be able to use it.