Odorless and colorless Concrobium Mold Control eliminates existing mold problems and leaves surfaces with an invisible antimicrobial shield that prevents new mold and mildew growth. Contains no ammonia, bleach, or VOCs and is EPA-registered and Health Canada approved. Ideal for household mold clean up and prevention, pretreating building materials during construction, eliminating mold problems found during renovation, ensuring mold prevention following flooding or water damage, and gets rid of musty smells. Works on drywall, concrete, wood, masonry, siding, shingles, stone, grout, plastic, tile and many more surfaces. Ideal for basements, bathrooms, laundry rooms, attics, closets, garages, windows, car interiors, boat interiors and RVs. Effective on hard and fabric surfaces. Eliminates musty odors. Odorless and colorless.