ResMed AirFit N20 Guide D'utilisation page 13

Troubleshooting
Problem/possible cause
Mask is too noisy.
Vent is dirty.
Mask is incorrectly assembled.
Mask is leaking.
Mask leaks around face.
Mask is not positioned correctly.
Mask may have been fitted
incorrectly.
Cushion may be dirty.
Cushion membrane is creased or
folded.
Mask is not tightened correctly.
Mask may be the wrong size.
Mask does not fit properly.
Mask is incorrectly assembled.
Mask may be the wrong size.
Solution
Clean the vent according to the instructions.
Disassemble the mask, then reassemble
according to the instructions.
Refit or reposition your mask.
Readjust the headgear straps to bring the mask
closer to the face and improve your seal.
Check that your mask is assembled correctly.
Check that the mask size indicator is facing
downward on the bottom of the cushion along
the bottom of your nose.
Pull the mask away from your face and
reposition, ensuring that the lower corners of the
mask fully enclose your nose. If necessary,
readjust the headgear straps to keep the mask in
the right place.
Clean the cushion according to the instructions.
Remove and refit your mask according to the
fitting instructions. Ensure that you position the
cushion correctly over your nose before pulling
the 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.
Ensure that the headgear straps are not
overtightened or too loose. You may find that this
mask does not need to be tightened as much as
other nasal masks.
Check that the headgear is not twisted.
Talk to your clinician.
Disassemble the mask, then reassemble
according to the instructions.
Talk to your clinician.
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