Silver Fox
If you have a small window in the room, you could remove the pane and replace it with plexi or lexan and drill / cut out a 4 inch hole for a dryer vent and a small bathroom fan, that's what I did and it works great for everything from pouring resins, epoxying, solarez and painting or anything else that is nasty to breath in. I hooked it up to a big clear storage tub with lots of room to work in.
If that's not possible the box fan you have is usually 20" x 20" which is the exact size of a furnace filter to at least filter out anything airborne. You will be surprised at what the filter will look like after a couple of weeks LOL