I get your point. But pollution is completely unnatural, too. We got to a point where few things are still natural in this world. I don't know if masks are effe

I get your point. But pollution is completely unnatural, too. We got to a point where few things are still natural in this world. I don't know if masks are effective against this kind of diseases, but I guess those 9M who die prematurely every year would have chosen to use them.