These are some Zelda, Pokemon and Portal themed gasmasks from DeviantARTist TwoHornsUnited. Me? I have a new German-issued gasmask just in case shit hits the fan. "Be prepared," my dad always told me. Also, "Stop riding your bike inside the house." Why on earth you'd need a Zelda themed gasmask is beyond me, but I suspect it has something to do with protection against Ganon's farts. Fun fact: did you know Ganon killed all the trees in the Lost Woods with a brutal cheek-squeaker one time? It's true, just ask the great Deku Tree. "I couldn't grow leaves for two years." Told you! The Kokiri still won't eat his acorns.
Hit the jump for the Pokemon and Portal ones.
Thanks to Wilmersama, who has a Borderlands themed gasmask because he's a badass and knows what the f*** is up.