When operating the CO2 extinguisher, the cylinder should be kept which way?

When operating the CO2 extinguisher, the cylinder should be kept which way?

• A. Grounded
• B. Hung Up
• C. On Its Side
• D. Lying Flat

Answer: (A)

CO2 extinguishers are designed to discharge as a stream of gas when the valve is opened, and that gas comes out most effectively when the cylinder is kept upright. Keeping the extinguisher grounded and vertical ensures the liquid CO2 inside stays in the correct position and the gas expands smoothly into a blanket over the base of the fire. If the unit is on its side or hanging, liquid CO2 can be expelled first, which gives an uneven, less effective discharge and can waste extinguishing agent. An upright position also reduces the risk of cold gas causing frostbite and helps you aim the stream where it will smother the fire best. So, it should be kept upright on the ground.

CO2 extinguishers are designed to discharge as a stream of gas when the valve is opened, and that gas comes out most effectively when the cylinder is kept upright. Keeping the extinguisher grounded and vertical ensures the liquid CO2 inside stays in the correct position and the gas expands smoothly into a blanket over the base of the fire. If the unit is on its side or hanging, liquid CO2 can be expelled first, which gives an uneven, less effective discharge and can waste extinguishing agent. An upright position also reduces the risk of cold gas causing frostbite and helps you aim the stream where it will smother the fire best. So, it should be kept upright on the ground.