BIO for shoe cabinet keeps your shoe cabinet & shoes clean and smelling fresh! BIO (Aerobes) decomposes organic matters that are food sources of mold and unwanted bad smelling into carbon dioxide and inorganic substance in sweaty shoes placed in a air-tight cabinet. Due to the higher temperature within the shoes cabinet, humidity tends to be higher and this product can help to reduce damp and regulate humidity of the shoes cabinet.  (Effective period: 2 months)