There’s no study showing any significant positive impact short of a fitted N95 mask.
I marvel at how long it took for this to come out. It took Dr. Fallacy’s own email stating a virus is not stopped by any cloth mask.
Yet, I see some people still walking around with them. Pure insanity.
Come to Oregon if you want to see crazies (ie. wearing masks while walking alone, nary a person in sight)