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A study that found that neck gaiters and bandanas do nothing to help block respiratory droplets that can spread COVID-19 has been called into question. A Duke University research team’s conclusion that a fabric gaiter will create more spread by splicing big droplets into smaller droplets is unlikely, a leading expert on aerosols told the New York Times.
According to lab tests led by Linsey Marr, a professor of civil and environmental engineering at Virginia Tech, neck gaiters provide some degree of protection, with some homemade masks performing better than the gaiters and some performing worse.