Face Shields Ineffective at Trapping Aerosols, Says Japanese Supercomputer - Slashdot > A simulation using Fugaku, the world's fastest supercomputer, found that almost 100% of airborne droplets of less than 5 micrometres in size escaped through plastic visors of the kind often used by people working in service industries. One micrometre is one millionth of a metre. #covid19 #masks

(#112654484881813586) As time passes and #masking grows rarer, those of us who still wear #masks get more often reactions of fear or even hostility. So this is my friendly reminder: when you see someone wearing a mask, if that mask is doing something to you, it is providing safety.