Exercise, smoking and asthma are all factors that can affect the gas exchange system. VOICEOVER: How we breathe. Breathing - or ventilation - is the process of taking air into and out of the lungs.

It’s at these terminals where natural gas is sent through an industrial refrigeration process, said Richard Meyer with the American Gas Association. “That super-cools pipeline gas to minus 260 ...

Exercise, smoking and asthma are all factors that can affect the gas exchange system. VOICEOVER: How we breathe. Breathing - or ventilation - is the process of taking air into and out of the lungs.