ResMed Quattro Air NV Mode D'emploi page 13

Troubleshooting
Problem/possible cause
Mask is uncomfortable
Headgear straps are too tight.
Mask could be the wrong size.
Mask is too noisy
Elbow incorrectly installed.
Mask leaks around the face.
Cushion membrane is creased or folded.
Mask could be the wrong size.
Frame incorrectly fitted.
6
Solution
The cushion membrane is designed to inflate
against your face to provide a comfortable
seal with low headgear tension. Adjust straps
evenly. Ensure that the headgear straps are
not too tight and that the cushion is not
crushed or creased.
Talk to your clinician to have your face size
checked against fitting template. Note that
sizing across different masks is not always
the same.
Remove the elbow from your mask, then
reassemble according to the instructions.
Refit your mask according to the instructions.
Ensure that you position the cushion correctly
on your face before pulling headgear over
your head. Do not slide the mask down your
face during fitting as this may lead to folding
or curling of the cushion.
Talk to your clinician to have your face size
checked against fitting template. Note that
sizing across different masks is not always
the same.
Remove the rest of the mask from the frame,
then reassemble according to the instructions.