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  • How to Choose the Best Cloth Face Mask for You

    The New York Times - 08/10/2020

    A recent Northeastern University paper (PDF) reports that a surgical mask sealed to the wearer with a band cut from a pair of nylon stockings went from blocking out 50% to 75% of small particles (less than 0.3 micron) to blocking 90%.

     “The fit was already good,” said study co-author Loretta Fernandez, an associate professor of civil and environmental engineering at Northeastern

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