Masks are actually optionally available at Logan Airport, on the MBTA and in lots of different locations. That has many officers reassuring people who, even when others aren’t masking, you may defend your self by sporting a great masks.
Experts say that’s true — however with some large caveats.
WBUR’s Gabrielle Emanuel joined WBUR’s Morning Edition host Rupa Shenoy to elucidate.