Difference between C-Flex and A-Flex

On here I hear alot about the c-flex and the a-flex. I know what the c-flex is -- on my machine it has 3 different settings where you can set the pressure lower for when you breathe out. The doctor wrote on my script he wanted a setting of 3, which as I understand it is the maximum reduction in air for exhaling. I works good and I haven't tried the 1 or 2 setting to see the difference.

My question is what is a-flex and how is it different from c-flex?

Thanks.

as I understand it it lowers pressure as you breath in also

I think of it this way-- ever see a baby or real young child in a strong wind?
they kind of sputter and choke and cant "get" their breath

aflex would be like dropping pressure so they could breath in--
cflex drops it so you can exhale

all I know for sure is my own experience-- my aflex is set on 3 and it makes it easier to use [compliance] I set my bottom up to 8.5 or else it seemed like not enough air when I first put on mask [ I use auto on feature- which means I never push buttons any more to start] it works for me- has helped greatly

packer

If you look at the colored graph, C-Flex is shown on the bottom curve (beginning of exhale) and A-Flex is shown at the top of the curve (end of inhale).

The difference in comfort is quite a bit. It allows you to use a higher pressure for example in obtaining a lower AHI while maintaining the comfort found with lower pressure. The result should be you use the machine longer because it is more comfortable
A-Flex found in the A-Flex Auto:


B-Flex found in the Bipap:


C-Flex found in the CPAP/Auto:


IF you compare C-Flex to A-Flex you will see it only offers relief on the lower half.

You can see them all at:

http://aflex.respironics.com/

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CPAPopedia Keywords Contained In This Post (Click For Definition): C-FLEX, AHI