You do know that mold spores are everywhere? And that it is virtually impossible to keep them out of a home without expensive industrial air filtration? Look at the weather report in the summer and when mold spores reach 50,000 (depends on area of country) ask yourself what are you trying to do? You are trying to kill the mold infestation immediately (industrial bleach will do that). Then you make sure the conditions CHANGE so that the old mold or NEW mold does not have a place to grow anymore. The current mold got there all by itself, new mold will get there again.