Page 15/40Version 02.01 • Date 19JAN2017
Do not breathe in through the AM3.
4.2 How to Perform Measurements with the AM3
To perform a valid PEF measurement with the AM3, the following steps must be
followed:
1. Inhale deeply and hold your breath until you have positioned the inlet of the
ow sensor into your mouth.
You should
• pause for about a second and then blow out hard and fast as you can.
• not cough.
• not block the inlet of the ow sensor with your tongue.
• not block the outlet of the ow sensor with your hand.
If you do not follow these instructions, the correctness of the measure-
ment values cannot be guaranteed.
2. Now you must exhale as hard as possible for at least 2 seconds to obtain a
satisfactory measurement.
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