Don't wear fleece masks. Duke.
"We were extremely surprised to find that the number of particles measured with the fleece actually exceeded the number of particles measured without wearing any mask," Fischer said. "We want to emphasize that we really encourage people to wear masks, but we want them to wear masks that actually work."
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Link: https://www.cnn.com/2020/08/08/us/duke-university-face-mask-test-trnd/index.html
Posted: 08/08/2020 at 10:31PM