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Based on sound evidence, most face masks protect only 1,000 nm+ in particle size. The coronavirus is only 80-100 nm in size. Because of this, the most face masks can protect you against is pollen. It's like comparing a grape to a grapefruit. It's a false sense of security. Now my question: Is it worth it?
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Based on sound evidence, most face masks protect only 1,000 nm+ in particle size. The coronavirus is...
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