How To Secure a Proper Mask Seal for ResMed Mirage Quattro?

Check to make sure there is no oil or dirt build-up. Facial oils can affect the mask seal if they are not cleaned off of the cushion. Clean your mask daily.
Check to see if the headgear straps are overtightened. It is recommended that you keep the headgear in the same position as was set by your clinician.
Make slight adjustments to the dial if necessary. Once you have found the most comfortable dial setting, you should not have to change it.
If you are not able to close your eyes after putting on the mask, that means you need a different size mask.
If you are still facing problems with the fitting of your mask, refer to the troubleshooting part in the user manual or contact your clinician.
Removing the ResMed Mirage Quattro
Disconnect one of the lower headgear clips to remove the Mirage Quattro, and bring the mask and headgear up above your head.