We recommend using a mild soap, rinsing with warm water and drying with a clean, soft cloth. You can also use 50% distilled white vinegar and water solution. Never use cleaners containing abrasives, ammonia, chrlorine, bleach or other harsh chemicals to clean, as they may damage the finish. Nebia by Moen also includes a built-in multi-layer filter at the inlet designed to catch sediment and solid buildups. This can easily be accessed by pushing the button on top of the bracket to remove the unit from the wall.