Unfortunately (because it can be the most difficult aspect to satisfy) working with the resins requires ventilation.  Its stinky, and you are not suppose to breath the fumes.

The solution for me was to use a former dry vent (as the kids moved out, I eventually moved the laundry upstairs.  The unit is inexpensive and comes with a fan a light.

I welded up some L brackets and used tapcretes to fasten it to the block wall.