Co2 Fire Extinguishers

Use CO2 extinguishers carefully, avoiding holding the extinguisher by the horn. Remember – don’t use CO2 extinguishers in a confined space. In all cases, firstly remove the safety pin to break the anti-tamper seal, and stand well back from the fire. Avoid holding the extinguisher by the horn.

Links

Download Brochure

How CO2 fire extinguishers work

CO2 fire extinguishers discharge CO2 gas, also known as carbon dioxide.  This is stored in the extinguisher as a liquid, and the gas is created under pressure when the handle of the extinguisher is squeezed.

This causes the CO2 gas to emerge at great speed, which is why CO2 fire extinguishers are not recommended for chip pan fires – they could literally blast the flames into surrounding areas.

Unlike water and foam extinguishers, CO2 fire extinguishers do not work by cooling the fire and so are ineffective on fires involving flammable solids.

Instead, CO2 extinguisher work by replacing the oxygen surrounding the flames with carbon dioxide, meaning the fire can no longer burn.

Pros and Cons of CO2 fire extinguishers

Pros: extremely effective on electrical fires; do not leave any residue behind when they are used.

Cons: risk of cold burns if the user holds the extinguisher by the horn; less environmentally friendly than other types of extinguisher; they replace the oxygen in the air with CO2 so risk of asphyxiation if used in confined spaces.