Tuesday 29 September 2020
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heshillongtimes.com - 2 month ago

Simple approach visually evaluates mask effectiveness

Scientists have developed a simple approach to visually evaluate how effectively different types of masks prevent the spread of droplets that could contain SARS-CoV-2 (Covid-19) virus. The results, published in the journal Science Advances, suggest that professional-grade N95 masks, surgical or polypropylene masks, and handmade cotton masks may all block much of the spray produced [ ]


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