Linsey Marr's rule on wearing a mask outdoors | Virginia Tech News | Virginia Tech

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impact 0:44 Linsey Marr's rule on wearing a mask outdoors

By:

Dawn Jefferies

1 Sep 2021 1157

Virginia Tech’s nationally-recognized expert in the airborne transmission of viruses, Charles P. Lunsford Professor Linsey Marr, shares her rule of thumb when it comes to wearing a mask outdoors.