How to perform a measurement?

Measurements can be performed while standing, or sitting upright.

For better comparability of your data you should always perform the measurement in the same position.

Hold the monitor with both hands.

Inhale deeply and hold your breath for a moment.

Cover the mouthpiece tightly with your lips.

Exhale into the measuring tube as strongly and quickly as possible!

Take the monitor away from your mouth and see your result in the display.

It is recommended that three or more measurements be taken sequentially.