A health professional told me back in March that face masks were ineffective but that respirators (the N95) were. Because of the source, I thought there must be validity to this. However, it seemed counterintuitive. I reasoned that there would be differentials between using any type of mask versus no mask because no mask usage […] - Kim Petersen
https://dissidentvoice.org/2020/05/do-masks-and-respirators-prevent-viral-respiratory-illnesses/?utm_source=dlvr.it&utm_medium=blogger