I am converting my downdraft sanding table to a duel purpose downdraft/paint booth. Basically I have a 3'x5' downdraft bench on wheels with an old furnace blower to draw the sanding dust thru the table and out thru furnace filters. With my sander hooked to my Festool dust extractor, it does a fine job. I plan to continue using this for sanding. But, I built a frame over the top of the bench to hang a clean room plastic curtain from and also enclosed the top, thus enclosing the bench. I rarely spray anything but water based finished these days however I think I should build it so I can also spray anything I might need. I would like to mount a separate fan for the paint booth purpose and just use the furnace blower for the sanding downdraft.
Does anyone know of a relatively cheap explosion proof fan for a paint booth?