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  • Why we should all be wearing face masks

    BBC News - 05/05/2020

    “Surgical masks, unlike N95 respirators, are designed to fit loosely,” says Loretta Fernandez, an environmental chemist at Northeastern University, in Boston, Massachusetts, who was one of those involved in the study. “This allows some air to go around the mask to the breathing zone rather than through the mask material.” They found that the addition of “nylons” on the outside of the mask helped to reduce this.

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