Measuring Lung Capacity

Different Elements of Lung Volume

• Tidal Volume- The volume of air moved in and out of the lungs with each breath when you are at rest. It is about 0.5 dm3
• Vital Capacity- The largest volume of air that can be moved in and out of the lungs in one breath. It is about 5dm3
• Residual Volume- The volume of air that always remains in the lungs. About 1.5dm3
• Dead Space- The air in the bronchioles, bronchi and trachea. There is no gas exchange between this air and the lungs
• Inspiratory Reserve Volume- How much more air can be breathed…