Carbon Dioxide Extinguishers have a black panel around them. They remove OXYGEN from a fire by smothering the flames; and they can be used on either Class B fires or electrical equipment.
To use the extinguisher, you need to position the discharge horn and pull off the safety tag to break the seal.
Make sure you don’t touch the extinguisher horn once you start discharging the extinguisher, even if it's a frost-free horn, because you’ll risk getting ice burns.
Pull out the pin and test that the extinguisher works by pointing it AWAY from the fire. Then squeeze the handle until the extinguishing agent comes out.
Then aim the horn at the base of the fire and squeeze the handle as you walk towards the flames. Once the flames are out, step back and keep discharging the extinguisher until you’re a safe distance away.
These extinguishers have a range of about 1 to 1 and a half metres, and will last for a minimum of 11 seconds.
DO NOT use Carbon Dioxide Extinguishers on Class A fires because it can cause a fire to spread. And don’t use them in confined spaces because there is a risk of asphyxiation if you inhale too much of the gas.
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