Washington Post

Consumer masks could soon come with labels saying how well they work

Company executives and scientists have spent months on the painstaking effort, which has been rife with squabbling over how much protection they can and should promise, among other issues. Foto: AP/Frank Augstein

As millions of Americans adopted mask-wearing this year to stop the spread of the novel coronavirus, they confronted a wild west of options, including artisanal products sold on Etsy, cotton coverings sewn by their family members and mass-produced items marketed by favorite retailers.

The personal protective equipment industry is trying to inject some clarity into the mask-purchasing experience by creating a uniform set of standards to show consumers how well the products would protect them and those around them...

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