My first full face mask was the Quattro and it caused red sore marks on my nose exactly like you descibe. I am now using the Quatro FX and it conforms to my nose without causing any red sore marks at all. The Quattro FX tends to move up and down on my nose a bit and leaks off and on as I change slee...

I need to understand how to access a PM after it has been sent and how to reply to the PM.

Thank you for your help

PISAL

Thanks to all of you who take the time to help others with CPAP problems. I would probably not be still on CPAP without the help you have provided. I have been using Encore Viewer since 2007 with my Auto M Series. I am in the process of getting a System One Series 560 with heated tube and heated hum...