No, you need to start the fan running before fumes build up.
It's very hard to explosion-proof a structure (I used to work for a company that sold NIR spectrophotometers for use in grain silos where the dust buildup is an explosion hazard).
If your compressor is in the area, it has a pressure switch that isn't explosion proof. Regular light switches aren't explosion proof. Motors with brushes are not explosion proof (unless they are totally sealed). That means just about any power tool (saws, drills, electric impact drivers, etc.) is not explosion proof. Garage door openers are not explosion proof.
Maybe you've taken care of all of that, but if you haven't, your best bet is to keep the fumes from ever building up.