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Without flu mask, airborne diseases can be easily transferred from respiratory droplets exposed from the mouth.
Wearing a mask can help prevent the spread of flu infection.
But for each pill and syrup we have to take if off and take a risk.
We taught it could be a mask with a resilient entrance in front of it to solve this easily!
Shahid Chamran University
Amin fahimi moghadam Mohammad zareii qanavati Shahab tahmasebi