Are the lungs able to filter out some harmful pollutants and/or chemicals and if so, how?
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Mucus is the main way the body filters stuff out like that. The idea is that it’s sticky and can catch bacteria and dust. That’s pretty much all we have, but lone molecules in the air really can’t be stopped, and even if there is a dangerous particulate in the air you shouldn’t count on the mucus to stop it. If it’s in your mucus, it will likely be digested by your body rather than inhaled.
Long story short, don’t count on your body to filter out abnormal conditions in the air. Wear the proper equipment to keep yourself safe.
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