Piano Accents Fire-Clean Mold & Mildew Odor Eliminator is an advanced formulation, eliminating musty odor from mold & mildew growth. An excellent choice for removing musty smells from piano interiors. Spray or topically apply directly to keys, actions, key bed, key frame, pedal board, felts or leather. Allow Mold & Mildew Odor Eliminator to penetrate wood cells or fabric fibers. Allow treated areas to completely dry for stellar results. Piano Accents Mold & Mildew Odor Eliminator is our first choice for removing musty, damp odors. Perfect for pianos in storage, basements, boats, air conditioners, shoes, clothing & carpets.