Do not use on sinks, bathtubs, or other porcelain enameled surfaces. Use of this toilet bowl cleaner on other than vitreous ware is done at users risk. Kills the following germs: Pseudomonas aeruginosa, Staphylococcus aureus and salmonella choleraesuis. Recommended for use in commercial and industrial buildings, schools, medical institutions, manufacturing plants, public restrooms, hotels and motels.