There's no evidence for his claim that he wears pants. I assume there'd be a way to measure when i'm wearing one kind of mask verss another kind of mask, how much of my breath gets out a certain distance. Can't we get some evidence like that? We know somethen we know something about the size of cove particulates that are troublesome. And we know what a mat, a cloth mass, does verse a paper masfer can’t we get some micro evidence? No.