Panasonic Toughbook CF-Y4HWPZZBM Operating Instructions Manual page 36

Usage/Handling/Maintenance
CAUTION
Do not use benzene, thinner, or rubbing alcohol. Doing so may adversely affect
the surface, e.g., discoloration. In addition, do not use commercially-available
household cleaners and cosmetics, as they may contain components harmful to
the surface.
Do not directly add or spray water or detergent onto the computer. If liquid
enters the inside of the computer, it may cause it to work improperly or be dam-
aged.
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