We suggests cleaning knobs, roses and plate every two months with a soft, damp cloth. A solution of soap and water could also be used to remove dirt but should not be used on cylinders and the battery compartment. Ensure liquid does not enter the cylinder or unit inside at any time. When cleaning, avoid using acidic or abrasive substances which may contain solvents, i.e. cleaning products, as such substances may cause a deterioration of the finish. It is recommended to use a microfiber material to avoid damaging the finish.