There’s loads of important stuff it does (as well as filtering and smelling). It warms and moistens the air as we breathe in, maximising the amount of oxygen we can get from the air. It also helps us to breathe when we are eating. We make sounds through it (‘mmmm’ for example), and the mucous lining catches viruses and bacteria from the air.
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Tom commented on :
There’s loads of important stuff it does (as well as filtering and smelling). It warms and moistens the air as we breathe in, maximising the amount of oxygen we can get from the air. It also helps us to breathe when we are eating. We make sounds through it (‘mmmm’ for example), and the mucous lining catches viruses and bacteria from the air.