Hertel Multi is a must for household cleaning. It leaves your surfaces shiny clean, with no need to rinse or dry.Hertel Multi is the only ultra-concentrated all purpose cleaner on the market. A little bit is enough. Its convenient container with a handle and a measuring cap allows you to control the amount of product you use. Biodegradable and phosphate-free, Hertel Multi is mild enough to be used on a multitude of surfaces. Try it on your windows and car… its effectiveness will surprise you. Hertel Multi is used diluted. Pour a capful (20 mL) in a bucket of warm water (8 L) and lather. Soak a cloth or mop in the solution and wring it out before wiping the surface.