S9 VPAP adapt curious results. Am I alone?

[DeepBreathing]

Are these the same settings you've used on all your machines? I ask because the minimum PS seems a bit high and might be causing the abrupt pressure change you mentioned. And of course you need to keep consistent settings to have a meaningful comparison between machines.

[Sleeprider]

If you would go thorough your clinical settings and document the settings, it would help in setting up other machines. Mode, EPAP min, IPAP max, PS min, PS max and any other relevant settings.

Sleeprider, Here are the current settings on the S9 VPAP adapt I am currently using:
Mode: ASV
EPAP: 6.0
Min PS: 6.0
Max PS: 12.0
Mask: Nasal Ultra
Tube: Standard
Pressure units: cmH20
Although I have not found anyone else with this same experience, this and another forum posting have provided me with a number of investigative steps I can pursue. Meanwhile, I have purchased a nearly new S9 VPAP adapt model 36007A running the same firmware that my existing machine runs: SX474-0905. My hope is it will behave the same as my current machine. I'll have the machine next week, will post results then. Even so, I will try a new Air Curve ASV again, this time employing sleepyhead and other suggestions made by forum members. Thank you for your help

I think you are so accustomed to a minimum PS of 6 and that is probably what was different in the other machine setups.  That high minimum PS almost doesn't allow for spontaneous breathing, and does most of the respiratory effort for you on each breath.   You still have to spontaneously trigger a breath, but the backup rate may be kicking in pretty fast for you depending on the respiratory rate; still you're running that unit nearly as a full time ventilator.  If you try an Aircurve 10, note you are not using ASVauto mode, and will .need to setup the min PS max PS the same