A leak may occurs when your mask’s seal is compromised by movement or improper sizing.
To find a source of leak, run your finger along the edge of your mask’s seal to find escaping air. Once located, adjust your headgear.
Resolve any leak in the upper part of your mask by adjusting your upper straps.
Resolve lower mask leak with your lower straps.
If leak persists, reseal by turning off your device, pulling your mask away from your face, allowing your cushion to reassume its natural shape, and then resettling your cushion on your face, with the top of the cushion sitting at the top of your nasal bridge.
If leak continues, you may need a different size mask. Try our sizing guide or speak to your ResMed Authorised Dealer about getting a different size mask.