Using the Mask-Fit Feature

This device includes a mask-fit feature to help you fit your mask properly. If a Ramp time is selected, the mask can be adjusted at a pressure closer to the prescribed pressure. To use the mask-fit feature:

1Fit your mask as described in the user instructions.

2Hold down the Start/Stop key for at least two seconds until air pressure delivery starts1. The flow generator will ramp to the mask-fit pressure2 and will remain at this pressure for three minutes.

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SETTINGS	21:53
	Mask Fitting
	Good
	Done

LK: 1.7 Press: 10

The LCD also displays a mask-fit star rating from zero to five stars. Three to five stars indicate a good fit. Zero to two stars indicate that you should adjust your mask.

The mask-fit star rating display disappears after three minutes.

3If necessary, adjust your mask, mask cushion and headgear to reduce leak and check your mask-fit star rating again on the LCD screen.

4After three minutes, treatment will begin.

•If you do not wish to wait three minutes, hold down the Start/Stop key for at least two seconds and treatment will begin immediately.

•If you press the Start/Stop key for less than two seconds, the device will return to standby mode.

Stopping Treatment

To stop treatment at any time, remove your mask and press the Start/Stop key

if the SmartStart function is enabled, simply remove your mask and treatment will end (SmartStop is not applicable with the "Mir Full" mask setting and certain alarms; see “SmartStart™” on page 10).

1The mask-fit feature can also be accessed from the Patient Settings Menu.

2The mask-fit pressure is the set treatment pressure or 10 cm H2O, whichever is greater.

Starting Treatment