16
Troubleshooting
Problem / possible cause Solution
Mask is too noisy
Vent is blocked or partially blocked. If the vent requires cleaning, use a soft
bristle brush.
Elbow or plug is incorrectly inserted. Remove the elbow and plug from the
mask and then reassemble according
to the instructions.
Mask leaks around the face
Mask is not positioned correctly. Gently pull the cushion away from the
face to reinflate. Reposition the mask
according to the instructions.
Air leaking around the nose
Mask is not tightened correctly. Tighten the bottom and middle
headgear straps. The top strap is
designed to sit quite loosely. Do not
overtighten.
Turn off the device and remove the
mask. Refit the mask according to the
instructions. Ensure you position the
cushion correctly on the face before
pulling headgear over the head.
The mask does not fit properly
Mask may be incorrectly assembled. Disassemble the mask and reassemble
according to the instructions.
Cushion may be dirty. Clean the cushion according to the
instructions.