Huffing nitrous seems to be of increasing popularity these days, which is of interest to me because people keep leaving heavy duty gas cylinders lying around after they're drained of their intoxicating gas, and I'm wondering what possible use I might find for these cylinders
@MLE_online if their certification date is still good you very likely can return them to a gas supply place. I think the deposit on my 60 cf oxygen bottle was $60, but that was 20 years ago.
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