Originally Posted by a64pilot
.. did more homework and had it changed to an APAP...
Yes, much better than CPAP, but even better still, many now go further than just varying the air pressure over time, they synchronise with your breathing and vary the pressure as you breath in and out.
They really make a difference in comfort, I don't know which makes/models do this, other than the Phillips Respironics model I tested for my mate. He was really happy that it did so well on power consumption
as it was the one he most liked to sell to his clients as he had the most positive feedback from them.
I suppose one of the reasons it did so well on power consumption
is that because of the pulsing nature of the unit, it was effectively "idling" half the time as you breathe out. Conventional wisdom suggests to me that the power needed to spin the fan back up again would eliminate the power savings, until I think about how electric
motors work and where they draw power, then I can see the 50% idle time is a big advantage, the fan is not working against the exhaled breath.