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REMstar 100M pressure question
#1
is there a way I can make the pressure the same on exhale as it is on inhale ??? when i breathe out at night it is louder on exhale and keeps me awake... I only use this machine when I travel and i am not used to it...As i seen in the presure adjust thread it mentions nothing about that ????

I now know this is a bipap machine and when i am home i use a cpap machine... is this the difference why i am hearing the sound ???

I will also be looking into a new smaller machine for when i travel.. My machine at home has a humidifier but when traveling it is no big deal as I use a full face mask ...

any help would be great even if pressure cant be changed .......at least I will know

Thanks and sorry if this was posted by someone before
I am a newbie

Rick
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#2
Hi fuzzman716,
WELCOME! to the forum.!
Hang in there for answers to your questions.
trish6hundred
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#3
Actually, what you want is for the pressure to be less when you exhale to reduce the noise.

Here's what's happening. The CPAP is trying to keep a fixed pressure in your airway. Because of the mask vents, it must keep a constant airflow to keep the pressure up when you are not breathing. When you inhale, you are taking some of that airflow into your lungs, so less goes out the vents. When you exhale, you are adding extra airflow into the mask, so more air goes out the vents.

If you are hearing extra noise on exhale, the noise is coming from the mask vents. If you are hearing extra noise on inhale, the noise is coming from either the hose or the humidifier, since the CPAP must increase the airflow on inhale to maintain the pressure.

I don't know anything about the REMstar 100m, but on the PRS1 REMstar machines I have, the C-Flex, C-Flex+, or A-Flex setting controls the pressure reduction on exhale.
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#4
(09-10-2013, 10:49 AM)RonWessels Wrote: Actually, what you want is for the pressure to be less when you exhale to reduce the noise.

Here's what's happening. The CPAP is trying to keep a fixed pressure in your airway. Because of the mask vents, it must keep a constant airflow to keep the pressure up when you are not breathing. When you inhale, you are taking some of that airflow into your lungs, so less goes out the vents. When you exhale, you are adding extra airflow into the mask, so more air goes out the vents.

If you are hearing extra noise on exhale, the noise is coming from the mask vents. If you are hearing extra noise on inhale, the noise is coming from either the hose or the humidifier, since the CPAP must increase the airflow on inhale to maintain the pressure.

I don't know anything about the REMstar 100m, but on the PRS1 REMstar machines I have, the C-Flex, C-Flex+, or A-Flex setting controls the pressure reduction on exhale.

I think I will be calling my Dr to get a new script for a new machine. My sleep provider says it has been 5 years since I got a new machine. I bought this machine as a backup and only use it when traveling. Trouble is i have been on the road for 2 weeks and i havent slept much with it.
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