Our body is a fascinating bio-reactor. The energy generation engines (Mitochondria) are part of every cell in our body. These cellular engines consume glucose produced by our digestive system as fuel; and oxygen inhaled by us through lungs as catalyst (both delivered through the blood stream) to generate energy that keeps us going. The process of energy production at the cellular level by oxydation of glucose is called 'Metabolism'. Even our brain cells (neurons) need energy so generated to function. As with any other energy generation engine, the process along with needed energy produces metabolic waste. The gasous component of this waste is CO2, which is transfered to the blood suppy and brought back to lungs for expulsion.
Our lungs are gas-exchangers. They transfer oxygen from the inhaled air to the blood supply; and the CO2 from the blood supply to the exhaled air. This exchange happens through tiny sacs (about 300 million of them) in the lungs called alveoli.
Total normal capacity of human (male) lung is 6 L (+/- 20%). Female lung capacity is 22.5% less i.e. 4.7 L. For now we will take male lung capacity as the basis for our discussion. Out of total 6 L capacity, lungs retain a 1.2 L (called Residual Volume) to keep the alveoli
Analogy for Non-Medicos
Now if you could somehow force purge 1.2 L of air out of retained 2.4 L; and also instead of 500ml, pump in more fresh air into the balloon (up to maximum theoretical possible of 3.8 L), the quality of air inside the balloon will improve significantly. When that happens, transfer of air to the smoke chamber will improve, enhancing the air quality of the smoke chamber.
Some tips to develop Deep Breathing:
- Increasing lung capacity: Inhale at the count of 2; exhale at the could of 3. So you exhale more than you inhale to get residual air out of lungs and fill lungs with fresh oxygen rich air.
- Spreading arms allow chest to expand, so lungs get more space to expand. Diaphragm based deep breathing also does the same by lowering the diaphragm and expand the abdomen so lungs get more space to expand.