Moen brushed nickel faucets are metal faucets with nickel finish that has a "brushed" appearance. As with any faucet, Moen brushed nickel faucets accumulate dust, dirt, water spots, stains, rust spots, scale and mold over time. Methods to clean Moen brushed nickel faucets vary little from those used to clean other brands of similar faucets. A mild household cleaner, light scrubbing and a diluted stain- and scale-removal solution can usually do the trick.
Spray mild household cleaner on your Moen faucet, then rub it with a soft microfiber cloth to wipe away the dirt and debris. If the mild household cleaner doesn't remove stains or rust from the faucet, scrub the areas gently with a damp soft-bristle toothbrush, then wipe with the cloth.
Wipe the faucet with a fresh damp cloth and check it for stains or rust. If your cleaner or toothbrush didn't clean the stains or rust away completely, mix equal parts white vinegar and warm water in a spray bottle, then spray the areas and wait an hour.
Rinse away the vinegar, then wipe the faucet again with a fresh damp cloth.
Dry the faucet completely with a soft, absorbent cloth.
Apply a nonabrasive furniture wax or car wax to the faucet and buff it with a cloth when it loses its luster, or at least once a month, to maintain the nickel's appearance.