Eliminates And Prevents Mold With Bleach Free Formula And No Harmful Chemicals. Penetrates To The Roots Of Mold Crushing It As It Dries. Leaves An Invisible Antimicrobial Shield To Prevent Mold From Returning. Great For Moldy Basements, Bathrooms, Closets, Attics, RVs, Or Boats. May Be Used To Pre-Treat Building Materials During Construction And Renovation. EPA-Registered, Odorless And Colorless.