Dr. Scrase, DOH Secretary, presented the below very helpful summary of the Duke University study at the Governor’s press conference today. As you can see, N95 masks and surgical masks are best. Various other cotton masks are pretty good, capturing 70-95% of droplets. Double layer bandanas capture only 45%, no mask captures 0, and neck gaiters not only don’t capture but create 20% more droplets than no face covering at all. Dr.Scrase said that there was no public health order regarding neck gaiters or bandanas yet, but he personally would stay away from people wearing them just as he stays away from people with no face covering. 

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