ResMed AirFit N30 Guide De L'utilisateur page 7

Disassembling your mask for cleaning
1. Disconnect the mask tubing from the vent module by gently twisting
it and pulling apart. If you are using the HumidX or HumidX Plus,
remove it from the vent module.
2. Disconnect the vent module from the AirMini tubing by gently twisting
it and pulling apart.
3. Firmly pinch one side of the cushion and pull away from the frame.
4. Unhook the headgear from the stabilizer by pulling on the end cap to
reveal the buttonhole.
5. Slide the headgear off the end of the stabilizer.
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