DURHAM, N.C. (WTVD) -- It has become part of our daily routine--before we leave the house, we grab our phone, keys and a face mask. For more than a month, North Carolinians have been required by ...
In a new study, researchers used principal component analysis along with fluid dynamics simulation models to show the crucial importance of proper fit for all types of masks and how face shape ...
WASHINGTON, May 3 2022 – In its updated guidance at the start of 2022, the U.S. Centers for Disease Control and Prevention said loosely woven cloth masks offer the least protection against COVID-19, ...
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