Total lung capacity is the maximum air which can at any time be held in the two lungs. It is 6 litres.
- By the age of 25, the lungs in a healthy adult fully mature and operates at optimal capacity.
- As humans age, the function of the lungs start to deteriorate, and it is a normal phenomenon.
- However, if any breathing difficulties are experienced as a young, there might be an underlying problem that requires an immediate medical diagnosis.