Originally Posted by
Jim Becker
"Cheap" and "Explosion Proof" really have problems being in the same sentence... ;) And I'm serious about that. Unless you believe you truly need to put in provisions for spraying solvent based products, it would be an expensive proposition to build out for that because in addition to the explosion proof fan and the necessary ducting outside (with the negative effect of spilling your heated/cooled air out with it) you'll need to make other safety provisions to isolate the space and do it correctly. With waterborne finishes, you're primary focus is capturing fines in the air from the spraying process which is much easier to deal with. While you still should wear PPE while spraying waterborne, it's primarily for particulates rather than chemical fumes at this point with modern waterborne products.
But if you really want an explosion proof fan, perhaps you can find something surplus rather than buying new.
There should be no issue with LED lighting...it's quite common. Just keep the switch on the outside of the space if you truly need "explosion proof".