Mortimer Schnerd, RN schrieb:

I'm finding this whole thread confusing. Maybe I need a hit of O2?

It is confusing because (nearly) everybody uses ambiguous words (1) and
nobody's cared so far to describe the setup which he assumes (2).

1) concentration, amount, pressure, when all which matters is partial
pressure of O2.

2) At which point does the concentrator extract N2 from the air and
where does he blow the "O2-concentrated" air? How is that "concentrated"
O2 provided: Via a Cannula which adds a stream of O2 to inhaled ambient
air? Via a closed mask? Into the cabin as a whole? etc.

Stefan