BUM! If I do that, all the characters are going to have to wear filter masks all the time, and it'll look pants on film.
Drat, and double drat.
Where's that bl**dy drawing board got to...?
Or maybe some kind of powered (unnoticable) nose plug/filter....? Hang on a min, I need to go away and think about this. *gnashes teeth*
Blinking stories! GRRRRRRR!!