(09-29-2015, 02:13 PM)PoolQ Wrote: 2. this expansion thing, just where is this expansion going on? The face side of the mask is sealed. The humidifier chamber, the hose, and the mask are all at a constant pressure so any expansion is happening at the vent exit and not in the system air path.
Well, we were talking about the air that is exhausted into the environment from the mask. Or at least I was.
The above is my opinion. It is just possible that I may, occasionally, be mistaken.
I am neither a Doctor, nor any other kind of medical professional.
Everything put together sooner or later falls apart.