Clean the unit with a clean, lint free cloth moistened with water and
mild antibacterial soap. If a more sterile cleaning is needed, use a cloth
moistened with an antimicrobial cleaner.
Do not submerse the unit in water. Should the unit accidentally become
submersed, remove the batteries, wrap the unit in a towel and drain as
much water from the unit as possible. Set the unit upright on the towel
and allow to air dry for at least 12 hrs in an area with low humidity.