(03-20-2016, 01:30 PM)Ed1101 Wrote: When machine is in pause mode, there is some air flow per manual to ensure dry out of hose. There is a slight pulsing on exhaling in this mode which the DME says is normal but the hose does not "jump" or bounce. The plate only partially closes the port in the pause mode.why do you have your mask on, and breathing when the machine is in standby mode?
(03-20-2016, 01:30 PM)Ed1101 Wrote: Notwithstanding, what the DME says the port does exhaust air on exhaling as I can feel it with my hand.if you're talking about exhaling when the machine is off (standby) then again, why are you breathing with the mask on and the machine of?
(03-20-2016, 01:30 PM)Ed1101 Wrote: I do not know if the drop of 3cm (EPR=3) from 15cm would allow the port to partly open.not unless the mask is defective
(03-20-2016, 01:30 PM)Ed1101 Wrote: Actually the air coming out of the port feels fairly constant to me so I do not think the valve works as the DME states. I think it reacts to air flow and closes proportionally. I do not know if there is a minimum pressure (air flow) that fully closes the the port but certainly 15cm should fully close the port. Anyone know this value for the F10 mask?
the AA valve is fully closed at *ALL* operating pressures of a cpap, which means 3cm and up. any air that you're feeling is coming from the vent holes that encircle the hole where the elbow connects.