people while going to the office wears mask on their nose .why does they do so
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to avoid contact of dust...
to avoid entry of pathogens through air..
to avoid entry of pathogens through air..
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people wear mask over nose so that they can avoid the pollution r the dust particles inhaling
mostly those who have dust allergy will use.
Moreover it is good for health.
I hope it will be helpful to you.
if u like my answer mark as brainliest
mostly those who have dust allergy will use.
Moreover it is good for health.
I hope it will be helpful to you.
if u like my answer mark as brainliest
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