I mean the once that produce oxygen locally and some are relatively cheap. I have one but it produced like 1L of oxygen per minute and also mixes it with air inside. Not enough for adult and concentration is not very high, but can be used in emergency situations. on amazon
This is different from concentrators I discuss?
I mean the once that produce oxygen locally and some are relatively cheap. I have one but it produced like 1L of oxygen per minute and also mixes it with air inside. Not enough for adult and concentration is not very high, but can be used in emergency situations. on amazon