303 Mold and Mildew Cleaner quickly and safely cleans and removes tough mold and mildew stains from virtually any water-safe surface. this product cleans unsightly mold and mildew stains that have already formed. Unlike other mold and mildew cleaner products on the market, this product does not contain bleach, and will leave behind a fresh scent, with no strong odors to worry about during or after use. Works safely on vinyl, plastic, painted surfaces and even safe enough for use on fabric.