And when both people were wearing fitted double masks, the receiver's exposure was reduced by 96%. When they were both wearing knotted and tucked masks, same thing -- 96% reduction.— Soumya (@skarlamangla) February 10, 2021
And when both people were wearing fitted double masks, the receiver's exposure was reduced by 96%. When they were both wearing knotted and tucked masks, same thing -- 96% reduction.