CPAP trigger sensativity

General Discussion on any topic relating to CPAP and/or Sleep Apnea.
farsidejg
Posts: 8
Joined: Tue Jun 27, 2023 9:08 am

CPAP trigger sensativity

Post by farsidejg » Thu Nov 13, 2025 4:13 pm

Can anyone reccomend a CPAP machine with a very low exhale to inhale trigger?

I've tried the Very High setting on the Aircurve 10s but it's not sensative enough. I've read that it needs 2L/min to trigger - apparently my tranition from exhale to inhale is not sufficient to trigger this very low threshold.

I currently sleep on a remstar m series machine that seems to work differentky than newer machines. It triggers at the end of my exhale before I've even started to inhale. That very low trigger seems to have trained my brain to only inhale when the machine pushes. I've slept on this machine for ~15 years and cannot find a suitable replacement. I've tried five newer machines with no luck.

Any thoughts would be appreciated.

User avatar
ChicagoGranny
Posts: 15390
Joined: Sun Jan 29, 2012 1:43 pm
Location: USA

Re: CPAP trigger sensativity

Post by ChicagoGranny » Thu Nov 13, 2025 6:04 pm

farsidejg wrote:
Thu Nov 13, 2025 4:13 pm
I've tried five newer machines with no luck.
Which ones have you tried?
"It's not the number of breaths we take, it's the number of moments that take our breath away."

Cuando cuentes cuentos, cuenta cuántas cuentos cuentas.

farsidejg
Posts: 8
Joined: Tue Jun 27, 2023 9:08 am

Re: CPAP trigger sensativity

Post by farsidejg » Thu Nov 13, 2025 6:43 pm

I've tried the Resmed Aircurve S and ST, the Airsense 10 Auto, Resvent CPAP/APAP, Dreamstation 1 and Remstar BiPAP Pro (system one 650).

I have the same issue with all of these machines - I exhale and don't sufficiently trigger inhale. I wake up gasping for air.

User avatar
ChicagoGranny
Posts: 15390
Joined: Sun Jan 29, 2012 1:43 pm
Location: USA

Re: CPAP trigger sensativity

Post by ChicagoGranny » Thu Nov 13, 2025 7:46 pm

farsidejg wrote:
Thu Nov 13, 2025 6:43 pm
Resmed Aircurve S and ST, the Airsense 10 Auto
I know you use an M Series, but do you currently have one of those machines that could be used for a one-night experiment?
"It's not the number of breaths we take, it's the number of moments that take our breath away."

Cuando cuentes cuentos, cuenta cuántas cuentos cuentas.

farsidejg
Posts: 8
Joined: Tue Jun 27, 2023 9:08 am

Re: CPAP trigger sensativity

Post by farsidejg » Thu Nov 13, 2025 7:52 pm

yes, I have an Aircurve 10S. Thx

User avatar
ChicagoGranny
Posts: 15390
Joined: Sun Jan 29, 2012 1:43 pm
Location: USA

Re: CPAP trigger sensativity

Post by ChicagoGranny » Fri Nov 14, 2025 12:24 pm

farsidejg wrote:
Thu Nov 13, 2025 7:52 pm
yes, I have an Aircurve 10S. Thx
It might be good if some of our experienced members could have a look at what is happening when you sleep with this machine. If you are in agreement:

1. Get a free account at SleepHQ.com

2. Upload the SD card to SHQ.

3. Post the link in this thread.

4. The link will have any personally identifying information redacted.

If you have used the 10S for a full night with the SD card inserted, members will be able to see the analysis. If you have not, you will need to sleep for one night with the SD card inserted.
"It's not the number of breaths we take, it's the number of moments that take our breath away."

Cuando cuentes cuentos, cuenta cuántas cuentos cuentas.