I'm glad this article came out. When I first started hearing about the first few cases in January I picked up a small supply of N95 masks, hoping that I wouldn'

I'm glad this article came out. When I first started hearing about the first few cases in January I picked up a small supply of N95 masks, hoping that I wouldn't need them. Since then, all of the points in this article have been striking me as odd - and eventually I shrugged my shoulders and decided that I'd use my masks regardless of whether they said they were effective. From an engineering and first-aid standpoint I figured they can't hurt, so it's good to see other people with the same perspective.