Air leaks are caused by masks that are too big, too old, or just the wrong style.

Air leaking into the eyes is usually an indication that the mask is too big (long or wide) as are leaks at the base of the nose. Leaks may also occur under the nose due to facial hair.

As the silicone in the mask cushion ages, it deteriorates and becomes too soft to hold a seal. For many masks, the cushion may be removed and replaced to extend the life of the mask. View our CPAP Supplies – Mask Parts to see if a replacement cushion is available for your mask.
When a cushion has softened to the point where it will no longer hold a seal, you may be able to tighten it enough to stop the leaking when you go to sleep, but during the night the seal will loosen and leak.

Mask Leaks may also be caused by the pillow pushing against the mask and changing the position and seal of the mask. There are special CPAP Pillows which are are designed to minimize the contact of the CPAP mask with the pillow, even when you are sleeping on your side.