Not a lot of thought is given to having fresh, clean air inside our cars. Usually we think only about the way it smells. If it smells bad there are a lot of options to mask the odors with everything from a hanging tree shaped piece of cardboard that (is supposed to) smell like pine to odor bombs. None of them, however, treat the source of the odor which is actually mold, mildew, bacteria and fungus that has found residency inside the core of your car's air conditioning system. For …