5Gently tighten the lower headgear straps (B-4).
The pads of the forehead support should sit comfortably on the forehead when the mask is in place. If the pads are at an angle and not completely seated on the forehead, change the position of the forehead support tab.
Note: Do not overtighten the headgear straps as this may cause discomfort, cushion creases and mask leak. The Ultra Mirage NV Full Face Mask has been designed to provide a comfortable seal without the need to overtighten the headgear.
6The fitted mask should look like this
7Connect the main air tubing to the elbow
8If the patient is unable to get a proper seal:
•reposition the mask by lifting it and placing the cushion comfortably on the face.
•adjust the position of the forehead support tab by testing all four positions and finding the one that best prevents leaks.
•gently tighten the headgear straps.
Notes:
•If it is not possible to resolve any leaks, your patient may require another mask frame and/or another cushion size.
•As with all mask ventilation systems, significant leak may occur between the mask and the patient's face. The leak may vary depending on such factors as the patient's position and sleep stage. Variation in leak may significantly affect patient ventilation, potentially producing profound hypoventilation or hyperventilation. The magnitude of this effect depends on the ventilator's ability to compensate for leak.
•Leak or variation in the leak may cause mistriggering of the ventilator.
Removing the Mask
Normal Release
To remove the Ultra Mirage NV Full Face Mask, squeeze one of the lower headgear clips and pull the mask and headgear up over the patient’s head.
Emergency Release Cord
The Emergency Release Cord (Figure 1) allows the mask to come away from the face quickly in the event of an emergency.
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