The last time I had to ventilate the shop was years ago when I was shooting primer all over. Crazy how time flies and now I'm sucking fumes again. This garage door had windows that I could remove and replace with a section of 1/4" mdf with a hole in the middle to accomidate the fan hose. I was later able to seal up the hole even better. When not in use, another sheet of mdf covers the hole. Works pretty good :)
