The vital capacity of adult males is about 3500-4000ml, while the normal range of vital capacity of adult females is 2500-3500ml. If the vital capacity is too high, there may be something wrong with the testing equipment. If it is higher than the normal range, it may be someone who practices vital capacity or exercises for a long time.
Vital capacity refers to the amount of gas you try to exhale after the maximum inhalation, which can reflect the respiratory function of Zener to some extent. It is simple to measure, so it is often used for health examination.
At school, we often do a vital capacity test during physical examination. People who usually exercise more will have higher lung capacity than ordinary students. Of course, this is in the case that the size difference between the two is not too big.