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Why wearing a mask may sometimes be riskier than wearing none Why wearing a mask may sometimes be riskier than wearing none Updated: Dec 18, 2020, 06:31 IST A joint study by researchers from the University of Massachusetts and the California Baptist University, published in Physics of Fluids, the journal of the American Institute of Physics, using air flow models has concluded “that wearing masks with very low filtration efficiencies.can do more harm than protection”. While the study acknowledges that “wearing a mask reduces particle penetration into the lungs”, wearing a used mask could prove to be riskier than wearing no mask at all as the

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