User manual

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10.6 DRAINING OF BREATHING VALVE WITH MOUTHPIECE
1. Grasp the breathing valve and put it in your mouth.
2a. Drain the breathing valve by exhaling and turning your head at the same time so that the exhalation
segment of the breathing valve is at the lowest position.
2
b. Drain the breathing valve by pressing the vent button and turning your head at the same time so that the
exhalation segment of the breathing valve is at the lowest position.