The passing standard of college students' vital capacity varies with gender. Generally speaking, the standard of vital capacity for girls is about 2000 ml, and that for boys is about 3000 ml.

Vital capacity refers to the total amount of gas you try to inhale and then try to exhale. It is the maximum ventilation capacity of a breath, which can reflect the potential ability of respiratory function in a certain sense. Vital capacity can fully reflect thoracic elasticity, airway, alveoli and thoracic elasticity, and it is one of the simplest and most valuable parameters in lung function testing.

However, this standard is not fixed. If the constitution is weak, the vital capacity may be relatively small. If you are in good health, or strengthen your health through exercise, your vital capacity may be relatively large.

If the lung capacity is relatively small, you can usually do more actions such as blowing balloons to exercise your lung capacity. In addition, we should pay attention to a balanced diet, eat more fresh vegetables and fruits, and eat less spicy food. At the same time, we should pay attention to rest, avoid fatigue and maintain good work and rest habits.