WARNING-continued

TM 9-2350-222-20- 1-3

WARNING

CARBON MONOXIDE POISONING CAN BE DEADLY

Carbon monoxide is a colorless, odorless, deadly poisonous gas, which when breathed deprives the body

of oxygen and causes suffocation. Exposure to air contaminated with carbon monoxide produces

symptoms of headache, dizziness, loss of muscular control, apparent drowsiness, and/or coma.

Permanent brain damage or death can result from severe exposure. Carbon monoxide occurs in the

exhaust fumes of fuel-burning heaters and internal-combustion engines and becomes dangerously

concentrated under conditions of inadequate ventilation. The following precautions must be observed to

make sure of the safety of personnel whenever the personnel heater, main or auxiliary engine of any

tank is operated for maintenance purposes or tactical use.

DO NOT operate heater or engine of tank in an enclosed area unless the area is ADEQUATELY

VENTILATED.

DO NOT idle engine for long periods without maintaining ADEQUATE VENTILATION i n

personnel compartment.

DO NOT drive any tank with inspection plates, cover plates, or engine compartment doors

removed unless necessary for maintenance purposes.

BE ALERT at all times during tank operation for exhaust odors and exposure symptoms. If either

are present, IMMEDlATELY VENTILATE personnel compartments. If symptoms persist, remove

affected personnel from tank and treat as follows: expose to fresh air; keep warm; DO NOT

PERMIT PHYSICAL EXERCISE.

B E A W A R E neither the gas particulate filter unit nor the field protection mask for

nuclear-biological-chemical protection will protect you from carbon monoxide poisoning.

THE BEST DEFENSE AGAINST CARBON MONOXIDE POISONING IS GOOD VENTILATION.

For artificial respiration. refer to FM 21-11.

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