The Centers for Disease Control and Prevention on Friday updated its guidance on face coverings to more clearly state that properly fitted N95 and KN95 masks offer the most protection against COVID-19. Still, it didn't formally recommend N95s over cloth ...
source https://www.nbcchicago.com/news/coronavirus/when-can-you-get-them-and-how-what-to-know-about-free-n95-masks-from-white-house/2731482/
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