How to clean a Levven switch
Switches can become dirty or stained when food, grease, soil, etc. is present on someone's fingers.
That is all right. Switches can be cleaned.
Clean your switches with a cloth that has been dampened by water. Wipe the damp cloth over the switch until the dirt has been removed.
Switches are not waterproof. They can be damaged by water.
Do not use solvent cleaners, spray cleaners, or excessive water. Do not use chemical cleaners of any type as they will damage the switch and void warranty.