(10-07-2013, 06:17 PM)Sleepster Wrote:(10-07-2013, 05:19 PM)RonWessels Wrote: I'm a little confused about Bi-Flex. Let's start with something simple: what is the difference between a CPAP set at 12 with a C-Flex setting of 1 (ie. 12 on inhale and 11 on exhale) and a BiPAP with IPAP 12 and EPAP 11? My understanding is that they are essentially identical.
I have noticed that the pressure doesn't jump from EPAP to IPAP until I start to inhale. With C-Flex, on the other hand, the pressure jump occurs at the end of the exhale. Not much of a difference, but it is a difference nevertheless.
Actually, this is also a difference between the PRS1 C-Flex and the ResMed EPR. With EPR, the pressure reduction ends at the start of the subsequent inhale, while, as you said, C-Flex pressure reduction ends at the end of the exhale.