Mold & Mildew Foaming Stain Remover quickly removes tough surface mold and mildew stains on a wide variety of surfaces throughout the home. It works on surfaces including ceramic tile, baseboards, fabrics, glass, brick, concrete, natural stone, laminated countertops, fully cured and oil-based painted surfaces, hard plastics, automobile tires, wood, grout and fiberglass. Bleach-free stain remover features a foam sprayer for a more direct application, preventing splashback and spores from spreading in the air. Stain remover is part of EPA's Safer Choice Program as a safer alternative to traditional chemicals. Do not use on metals or finishes, especially stainless steel appliance exteriors.