come by and check it out. he will be able to run tests to determine if you have a mold problem in your home.
in your shower stall or bathtub, it is easy to distinguish normal soap scum from the mold. however, in the basement or cellar, you may have to investigate a little further to find the mold. mold will take hold of damp areas, so if you have a wall or floor where dampness collects, mold could very well be there as well. it can hide in corners or dark areas all over your home. virtually no area is immune.
while not all mold can be easily seen, a quick 