Trying to think of some characters that could use gas masks...

[Captain]

If you mean the Marvel one, nope.I think the name was the Twilight Defender or Avenger...something like that. Was there a Twilight Prowler?

I've been snooping around comic book sites, but havent run across him yet. He came out in the Eighties...possibly early nineties.

[Captain]

Found a pic of the Twilight Avenger. He is the one I was thinking of, but hes not quite as I remember him.

Sorry.

[thunderbolt]

There was a Prowler from Eclipse, but I think he just had a ski mask. Got another one tho...Mr. Element from the Flash.