Quote Originally Posted by Roberts_Clif View Post
My 3D Printer enclosure has alight dimmer control and a bathroom fan. I have a vent hole that the fan draws air from.

When printing any model with air flow can ruin prints, I use only enough air flow to keep smell moving to outside vent.
I have printed ABS with this constant air flow low enough that the print came out near perfect.
By vent hole, do you mean just a hole?

I don't know if it is a good idea to seal the door. If I seal it and use only one fan, there is no air to go in. If I leave some gap perhaps just like a vent hole in your case, those toxic nano particles could leak out. What do you think?