ResMed AirFit F40 User Manual page 7

Adjusting your mask
• With the device turned on and blowing air, adjust the position of the
cushion for the most comfortable fit under your nose. Ensure that the
cushion is not creased and the headgear is not twisted.
• The top headgear strap should sit on top of your head and not too far
forward or back. Reposition the strap if needed to ensure the cushion
has a good seal under the nose.
• To fix any leaks around the nose, pull the cushion slightly away from
the face and reposition the cushion so that it sits comfortably under
the nose. Adjust the upper headgear straps, if required.
• To fix any leaks around the mouth, adjust lower headgear straps.
Adjust only enough for a comfortable seal and do not overtighten.
• If you continue to have leaks around the face, you may have the
wrong mask size. Talk to your clinician to have your mask size
checked. Note that sizing across different masks is not always the
same.
Scan this QR code with your mobile device or visit
ResMed.com/downloads/masks for helpful documents and
support videos for your mask.
Removing your mask
1. Twist and pull both magnetic clips away from the frame magnets.
2. Pull the mask away from your face and back over your head.
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