New Philips DreamStation Question

Wife received her new cpap machine and it is making a swishing sound every time she exhales. Is this normal?
Thanks

Before you do anything else, make sure that there are no leaks (leaks can be noisy, even though the machine will compensate for them).



This might be from the EPR (C-Flex or A-Flex). You can turn that off (no matter what you've been told) if you find it annoying. Basically, what this means is that the pressure lets up slightly when the patient exhales. Some love that feature, some hate it (like me), and there all shades of like and dislike in between.


Is she using the humidifier?

Those inhale/exhale sounds (even loud to this old guy with poor hearing) turned my DreamStation Auto into my backup machine. Now using a ResMed AirSense 10 AutoSet machine and I have no such sounds. The difference is quite noticeable. I have tried changing Flex settings to different numbers including off but it has no effect on inhale/exhale noise. Also tried different masks, full & nasal, with the same results. Noise is still there regardless of humidifier attached/unattached, with and without water. The DreamStation does not work for me although it does give me good numbers.

How do i turn the EPR (C-Flex or A-Flex) Off?

The thing is pretty loud in a quiet bedroom at bed level. I was able to place mine underneath my nightstand on a very low stool and now it no longer bothers me.

To be able to set the Flex modes you need to enter the Clinician menu, something you probably shouldn't do without consulting your physician. That said, you enter it by simultaneously pressing the ramp button and the dial for 5 seconds. You might want to read up on what can be configured there before you start.

See this ===> https://www.apneaboard.com/dreamstation ... structions

420benz wrote: ↑

Wed Jul 11, 2018 8:35 am

How do i turn the EPR (C-Flex or A-Flex) Off?

It's not referred to as EPR on your type of machine, so you won't find anything in the manual about it.

DH is best ignored.

Turning flex off may or may not reduce the noise enough to not be objectionable. Even with no flex, the motor still speeds up and slows down with breathing, it speeds up to maintain pressure when you inhale and slows down when you exhale... it was annoying enough to me when I had a respironics that i sold it and bought a resmed.