Where could I buy a gas mask?

Question

I'm looking to buy a gas mask for a costume (a STALKER from the game of the same name, if anyone is curious) and I have everything I need but the mask. Where could I go to buy one? And I mean a real one, not a plastic toy one or anything. It doesn't have to work, it's just for a costume. I only have 50$ to spend on this part of the costume, so try to keep it under that.

Answer 1

army surplus stores, can get em real cheap, Probobly have to live in a larger city though.

Answer 2

ebay is great...