FG536 Features: -Mold blocker.-Prevent mold and mildew from damaging your home and health.-Unique formula creates an invisible barrier that mold and mildew cannot penetrate.-Blocks mold and mildew for up to 2 months between applications.-Use both indoors and outdoors, on fabrics and on any surface that isn"t stained by water.-Spray on weekly to replenish barrier on surfaces like tile and shower curtains.-16 oz.