Have a Dumb Question about APAP Machine

[Motoapco25]

i have a REMstar Auto and i have never seen it move off of 10cm its set for 10-20

is there a trick i can do to test it i have held my breath and it dosent change

[Wulfman...]

i have a REMstar Auto and i have never seen it move off of 10cm its set for 10-20

is there a trick i can do to test it i have held my breath and it dosent change

Your profile shows that you have a REMstar Plus.....which is not an Auto.
What does the machine say on the top of it?
Have you ever been in the Setup? If so, make a list of what ALL of the settings are and come back and tell us.

Den