We recommend cleaning your Nebia by Moen Quattro with a mild soap, rinsing thoroughly with warm water and drying with a clean, soft cloth. Never use cleaners containing abrasives (including abrasive sponges or steel wool), ammonia, bleach or sodium hypochlorite, organic solvents (e.g. alcohols) or other harsh chemicals (e.g. limescale removers) to clean, as they may damage the finish.
Both the finish and nozzles stand up well to hard water. That said, if you have very hard water, over time build up will occur. We recommend cleaning your Nebia by Moen Quattro with white vinegar. Any build up/mineral deposits will completely dissolve within minutes.