Moisture Traps

As per usual, Al's got it covered and saved me the bother. Good man.

Anecdote: When I first bought Tiger, I used to get a runny nose and eyes every time I drove her. Replacing that filter stopped that completely, and changed the smell of her, (she now smells of leather, nicotine, rage and fear).
Mine now smells of WD40... very manly. :)