How do the lungs protect themselves from dust and dirt in the air?

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To protect themselves from dust and dirt in the air, the lungs produce mucus. Mucus traps the dust and dirt so that it gets coughed up and out of the lungs. Breathing in dust, dirt and other particles in the air can damage the lungs, but luckily they're pretty good at keeping themselves clean and healthy.

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Human beings take in about 20,000 breaths each day, to keep our bodies running. Find out more.

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How do the lungs protect themselves from dust and dirt in the air?

Continue Learning about Functions of the Lungs