For peace of mind I would suggest that you call Gamblin and ask them if a regular fan would be OK.
Gamsol vapor is not a very flammable material. You can’t even get it to light with some sitting in an open cup with a match a half an inch away from it. It is difficult to get it to burn even with a propane torch pointed right at it until you heat it up enough to start to boil. I put my regular fan so it is resting on the window sill pointing out the open window when I need the ventilation. I have been doing that for decades, no explosions.
If you were filling the room with gasoline, propane or lacquer thinner vapors, then you should get a spark proof fan and an organic vapor mask as well!