239 RED FLAG: University of Maryland: "Study shows N95 masks near-perfect at blocking escape of airborne COVID-19"⸻This study is going to be used as the sole justification to bring back masking (sph.umd.edu) posted 102 days ago by nothingberg 102 days ago by nothingberg +239 / -0 89 comments share 89 comments share save hide report block hide replies
Shoddy science. They're only measuring reduction in particles with zero consideration of how many particles infection takes, so they have no idea if a 98% reduction means anything in terms of reduced infection.