haier AS072AZNDA - Manual (Page 17)

Maintenance
Cut off power supply
before cleaning wipe unit casing with soft cloth.
In case of heavy stain, clean it with neutral detergent.
squeeze water in the cloth, wipe off the detergent on
unit
Cleaning of unit casing
Cleaning of remote controller
Cleaning of air filter
Don't use water to wash unit casing, please use dry cloth.
Don't use glass cleanner or cloth soaked with chemicals.