We Just Found The Secret Weapon That Makes Cotton The Best For Reusable Face Masks – ScienceAlert

While some still quibble over wearing masks a year into the pandemic, scientists have gotten on with working out exactly what strategy is best – and cotton face masks just received another tick of approval.
Various studies have tested different material combinations and health authorities such as the World Health Organization and the CDC recommend cloth masks for the general public, based on their conclusions. But some of these studies overlooked an important real-world factor – these face covering…

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