Anyone with industrial hygiene experience could have predicted this.
That's what I've been saying the whole time. I wore a MCU/2P gas mask on the job, and had to be fit tested for it. Fit testing for respirators and N95 masks is a thing, too.
We've known surgical masks have bee useless for the spread of airborne virus since 1981, when their effectiveness in a surgical setting was studied.
Back when masks were required, and I had to go someplace that required one, I wore it under my nose. My face is too big anyway, I have a big head.
That's what I've been saying the whole time. I wore a MCU/2P gas mask on the job, and had to be fit tested for it. Fit testing for respirators and N95 masks is a thing, too.
We've known surgical masks have bee useless for the spread of airborne virus since 1981, when their effectiveness in a surgical setting was studied.
Back when masks were required, and I had to go someplace that required one, I wore it under my nose. My face is too big anyway, I have a big head.