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5 To tighten or loosen the headgear straps, peel the Velcro
headgear and reposition it. Gently and evenly adjust the upper headgear
straps (B-3), then the lower straps (B-4). Alternate the adjustment of each
set of straps until they are comfortable and firm and so that the upper
headgear clips rest between your eye and your ear. The mask should gently
'float' on your face. Do not overtighten the headgear straps.
6 Connect one end of the main air tubing to your flow generator and the other
end to the swivel.
7 Connect the elbow to the mask frame, holding the sides of the elbow then
firmly pushing it onto the frame until it clicks into place (B-5). Rotate the
elbow to check that it rotates freely and does not separate from the frame.
8 Turn your flow generator on.
9 If you feel air leaks, you may need to adjust your headgear. Return to step 5
or check through the suggestions in "Optimising mask seal and comfort"
below.
Optimising mask seal and comfort
To receive effective therapy it is important to have the best seal possible
between your mask and your face. If you are experiencing leaks, please ensure
that you have followed the fitting instructions carefully. Carry out a quick check
after fitting your mask:
Is the mouth cushion creased? Creases can allow air to leak out of the
•
mask.
Have you cleaned your mask recently? Oils on the cushion and pillows can
•
affect the seal.
Are the pillows correctly seated in your nostrils? Re-seat or adjust the
•
pillows to obtain a proper seal.
Are your headgear straps overtightened? Try not to alter the upper headgear
•
straps once they have been tightened by your clinician.
If you cannot establish a comfortable seal, do not overtighten the headgear.
•
Consult your clinician.
Try another nasal pillow size.
•
If you cannot resolve any problems, look at the Troubleshooting section, or talk
to your clinician.
Removing the Mask
To remove the Mirage Liberty:
1 Detach the elbow by squeezing the elbow on both sides (C-1).
2 Unclip both of the lower headgear clips (C-2) and remove the mask.
3
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