Ethan
Money List Winner
That study had very little to relay on, since RCTs of masks vs no mask have not been done very often, for obvious reasons, and carry obvious problems with blinding (you can't really do it properly).
Most people are happy to rely on the self-evident effect of reducing droplet spreading as being a good thing. If someone sneezes on you wearing a mask, or not wearing a mask, which one causes the most snot splatter?
Like masks in Covid, masks in surgery need to be combined with other measures, though.