How long is a CPAP/BIPAP prescription valid for? I am in the process of ordering a travel machine and when I called the sleep clinic to get a copy of my prescription they told me that it had expired. According to them it was only valid for a few months.

Is there any advantage to using auto mode with those settings or is it going to be exactly the same as using S mode? You might find you don't need as much pressure all the time. The settings mets123 offered would act the same as what you have now, but wouldn't tell you anything. I'd try minepap 11,...

Is there any advantage to using auto mode with those settings or is it going to be exactly the same as using S mode?

I have been using my Aircurve 10 Vauto for about 4 months now in S mode with great results. My AHI is almost always under 1, but I do want to try running the machine in auto mode. It's currently set in S mode at IPAP 16 and EPAP 12. What would the equivalent settings in auto mode be?