Masks: How layers and materials help protect against COVID-19 and other diseases ...United Arab Emirates

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Atlanta: Wearing a face mask can protect yourself and others from COVID-19, but the type of material and how many fabric layers used can significantly affect exposure risk, found a new study from the Georgia Institute of Technology. The study measured the filtration efficiency of submicron particles passing through a variety of different materials. For comparison, a human hair is about 50 microns in diameter while 1 millimetre is 1,000 microns in size. "A submicron particle can stay in the air for hours and days, depending on the ventilation, so if you have a room that is not ventilated or poorly ventilated then these small particles can stay there for a very long period of time," said Nga

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Last updated : 06 April 2021 clock 10:46 AM

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Masks: How layers and materials help protect against COVID-19 and other diseases ...United Arab Emirates

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