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Section 4: Fitting the mask
11
Fitting the mask
The mask frame and headgear should be assembled as described in section 3,
Preparing for use.
To fit the mask to your face:
1 Loosen the headgear straps and pull the
headgear over your head. Make sure the
straps are sufficiently loose so that the
nasal cushion is not pulled against
your nose.
2 Position the headgear so that
the bottom straps pass below
your ears and the top center
strap passes over the top
center of your head.
Check that the headgear is
not twisted at the back of
your head.
3 Positioning a Bubble Cushion™
If you are using a Bubble Cushion, the flow generator needs to be running to
inflate the cushion before it can be securely positioned against your nose.
This step is described in the following section, Daily operation.
Positioning a standard cushion
You do not need to inflate a standard cushion before positioning securely on
your face. Simply move the mask slightly from side to side and up and down
until a comfortable fit is achieved.
4 With the mask in position, lie down in your
normal sleeping position. Adjust the head-
gear straps so that the mask sits comfortably
with the forehead pads lightly touching your
forehead.
Do not overtighten the straps.
To remove the mask
Stretch the headgear slightly and pull it up and
over your head. Alternatively, release one or both
of the bottom straps and remove the headgear. You should not need to adjust the
headgear again until it is disassembled, e.g. for weekly cleaning.
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