Would it be possible to have the door set ajar and construct some kind of shielding with two corner holes in it, which could be attached to the inside of the door; Leaving one hole at the bottom for air intake, and one at the top for some exhaust tubing to poke through?

In effect sealing the door, albeit rather poorly. Even if it wasn't 100% sealed up (excluding in/outtake), surely if i managed to get a negative air pressure inside the space, and so long as i had a decent odor neutralizer in place+fan the outside room would remain largely odor free?

I do want to use HPS.. allow me highgrade smokes! :jointsmile: