Allegra's Lung Volume Test (WMV)
Allegra Cee has just come to work at the Inflation Laboratory, and wants to measure her lung capacity vital capacity) with our electronic spirometer. She first calibrates the spirometer with a 3 litre calibration syringe, and then blows a huge breath through the machine. Just for good measure, she makes a second measurement, both times confirming her capacity is right at 4 litres, which is slightly above average for her height.
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