16 OZ, Mold Armor Mold Blocker, Creates An Invisible Barrier That Prevents Mold Growth On Surfaces, Barriers Last Up To 2 Months, Surface May Be Washed Without Harming Barrier, Bleach Is The Only Chemical That Will Remove The Barrier Immediately, For Use On Any Surface Not Stained By Water Including Fabric, Carpets, Concrete, Drapes, & Upholstery, Biodegradable.