I live in a major metropolitan area and I also rely on public transportation. Terrorists love public transportation in major metropolitan areas. To protect against airborne threats, what mask should I carry, what should I use to protect it from being crushed while in my purse and what other protection should I use? The mask needs to be a snug fit or what is the point? As for brand I've been looking at 3M.

Jeanette Isabelle
_________________________
I'm not sure whose twisted idea it was to put hundreds of adolescents in underfunded schools run by people whose dreams were crushed years ago, but I admire the sadism. -- Wednesday Adams, Wednesday