I would at least put a sealer on that concrete. Concrete never stops giving off dust. The sealer will eliminate that and also, if you spill oil or anything like that, it will prevent it from soaking in.
True. At one of the power plants I worked at all the electronic control systems were in a room with a concrete floor. It dusted so bad from just foot traffic that the filters on the cooling fans for the equipment were plugging. After about five years of fighting this (new unit) we put some kind of sealer on the floor that took care of the problem.
