Erases mold and stagnant water odors from washing machines and dishwashers! HE and non-HE • front and top loading Great in non-ultrasonic humidifiers, too! Mold Monster is tough on musty odors from mold and mildew buildup in your washer drum and lines. This bottle will provide two treatments: Add 2 oz. to your empty washer and run for one cycle with no clothes in the washer. Leave the door open to dry after the cycle has completed. Repeat every two weeks. Mold Monster also works in dishwashers. Add 1oz to the pre-wash compartment and run on hot/Sani-rinse, for 1 cycle with no dishes. Mold Monster Washer Treatment works as an antiseptic encapsulating odor-causing mold, mildew, bacteria and other micro-organisms. Kills foul smelling fungus at the source! Destroys musty odors! Kills mold & mildew! Safe for your machines: Metal, plastic, any surface! NO BLEACH or harmful chemicals!