Can be used on washable hard, non-porous surfaces such as shower stalls, shower doors and curtains, bathtubs and glazed tiles, chrome plated intakes, toilets, toilet bowl surfaces, urinals, portable toilets, glazed porcelain and restroom fixtures. Application: Shower Stalls; Doors and Curtains; Bathrubs; Glazed Tiles; Toilets; Urinals; Applicable Material: Shower Stalls; Doors and Curtains; Bathrubs; Glazed Tiles; Toilets; Urinals; Chemical Compound: Ammonium Chloride; Dirt Types: Mold; Mildew; Germs; Athlete’s Foot Fungus.