Yes, a Puraclenz P3000 unit has been shown to reduce harmful mold Aspergillus brasiliensis within the environment by 95.1 percent. Aspergillus brasiliensis is a black mold endospore that induces allergic responses and may be used as a substitute for Toxic Black Mold, Dark Grey Mold, and other allergy-causing molds. To get the greatest results regarding mildew on objects in your home, clean the affected parts with bleach and water first. Then, for at least 7 days, operate your Puraclenz unit continually to avoid mold formation.