Owner's manual

TANK-820-H61 Embedded System
Page 140
Vacuum cleanerUsing a vacuum specifically designed for computers is
one of the best methods of cleaning the TANK-820-H61. Dust and dirt can
restrict the airflow in the TANK-820-H61 and cause its circuitry to corrode.
Cotton swabs - Cotton swaps moistened with rubbing alcohol or water are
excellent tools for wiping hard to reach areas.
Foam swabs - Whenever possible, it is best to use lint free swabs such as
foam swabs for cleaning.