O2 Concentrator instead of O2 tank

"Jim Macklin" wrote in message
...
If you don't increase the concentration of oxygen, but are
merely removing N, the partial pressure of the oxygen will
not increase.

Ummm, yes it does. You ARE incresing the concentration of oxygen by
removing the nitrogen and using what is left. Partial pressure is based on the
concentration of a given gas and a higher concentration of oxygen means a higher
partial pressure if all else stays equal.

Oxygen concentrators are nothing new. Only the concept of making them
truly portable is new. My wive needs oxygen for the duration of our frequent
trips to Denver, and I can tell you from experience that either pure oxygen or
oxygen from a concentrator serve equally fine to increase her oxygen sats.
Flying would be no different.

By the way, this concentrator technology is becoming so common that even
tire shops are rapidly getting it, so they can charge you more for putting
nitrogen in your tires rather than ordinary air.


Vaughn