Troubleshooting

Problem / possible cause

Mask is too noisy

Vent is blocked or partially blocked.

Elbow or plug is incorrectly inserted.

Mask leaks around the face

Mask is not positioned correctly.

Air leaking around the nose

Mask is not tightened correctly.

The mask does not fit properly

Mask may be incorrectly assembled.

Cushion may be dirty.

Solution

If the vent requires cleaning, use a soft bristle brush.

Remove the elbow and plug from the mask and then reassemble according to the instructions.

Gently pull the cushion away from the face to reinflate. Reposition the mask according to the instructions.

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.

Disassemble the mask and reassemble according to the instructions.

Clean the cushion according to the instructions.