TM 9-2320-360-10
c. Gas Particulate Filter Unit (GPFU) Operation
WARNING
After Nuclear, Biological, or Chemical (NBC) exposure of HET
Tractor, handle all air filters with extreme caution. Contaminated
filters should be handled only by trained personnel. Unprotected
personnel may experience injury or death if residual toxic agents or
radioactive material are present. Wear protective mask, hood,
protective overgarments, chemical protective gloves, and boots in
NBC environments. Protective mask and filter unit will not protect
against carbon monoxide.
NOTE
The GPFU is designed to operate with the M25A1 or M42
protective mask.
Do steps (1) thru (7) only when under NBC attack or when
ordered to do so.
For detailed information concerning protective mask, refer to
TM 3-4240-280-10.
(1) Remove protective mask (1) and canister (2) from pouch (3).
(2) Put on protective mask (1).
(3) Clear and seal protective mask (1).
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