The total average lung capacity of adult human being is about 5 liters of air. With an extra deep breath, the maximum value of air inspired and expired called vital capacity averages about 4 liters, which is 80% (⅘ ×100 =80%).
The total average lung capacity of adult human being is about 5 liters of air. With an extra deep breath, the maximum value of air inspired and expired called vital capacity averages about 4 liters, which is 80% (⅘ ×100 =80%).