Device setup 29
DreamStation BiPAP autoSV User Manual
2.11 Check mask fit
The optional Check Mask Fit feature can be enabled or disabled by your home care provider. This feature
allows you to check the fit of your mask prior to starting therapy. This is done by measuring the amount of
leak. Put on your mask assembly. Refer to your mask instructions if needed. Navigate to the Check Mask Fit
screen under
My Setup
, and press the control dial to start the check.
The device will deliver a test pressure while the screen counts down 40 seconds. A green bar indicates good
fit, while a red bar indicates improvement is needed. After the test, normal therapy will start and the screen
will either display a green check mark or a red X. The green check mark indicates that the leak found allows
for optimal performance of the device. The red X indicates that the leak may affect device performance,
however, the device will remain functional and deliver therapy.
Note
If you choose to try to improve your mask fit, you can stop therapy, adjust the fit of your mask, and
rerun the Check Mask Fit. Refer to the instructions that came with your mask and headgear for the
proper fitting procedure.
2.12 Sleep progress
Your device provides summary information about your therapy use each time the therapy is turned off.
The screen displays your
Three Night Summary
. It shows your nightly usage for the last 3 sleep sessions
(measured in 24 hour periods, ending at noon each day). The most recent session is displayed in the right
hand bar, labeled with the number of hours slept. A green bar indicates that you slept more than 4 hours,
and a yellow bar indicates less than 4 hours of use.
