Health
COVID-19 mask study finds layering, material choice matter – Science Daily
Researchers report results of a COVID-19 mask study showing which materials had the greatest filtration efficiency. The findings underscore the critical importance…
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, finds a 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 millimeter is 1,000 microns in size.
“A submicron particle can stay in the air for hours and days,…
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