Question

Why should we breathe through the nose and not through the mouth?

Answer 1

its because when we breath through mouth the impure air enters where the air doesn't get purified..whereas when we breath through nose..the nasal hair could clean and purify the air and reach the lungs.So its always better to breath from nose

Answer 2

because in nostril there is mucus, which stick the dust particles. so, particles can't go inside lung but if we breath through then all dust particles go inside and affect our lung and it becomes very danger.
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