cut to fit carbon pad holder for 80mm fan

This is a part i designed to hold 3/8" to 1/4" cut to fit carbon pads. ones like what you can get a pet store. I made it to filter the ABS fumes coming from my da vinci 1.0. (There is no carbon pad in place in my picture because i dont have one yet. I'll update the pictures once i do.)

if your wondering the fit in piece for the side of my printer is made by someone else. heres a link to it. http://www.thingiverse.com/thing:495259