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CO2 fire extinguishers are suitable for use on class B and electrical fires. CO2 fire extinguishers are primarily for use on fires of electrical origin. Being non-toxic and leaving no residue, CO2 will not harm machinery or electrical equipment.

Class B fires occur when flammable liquids, such as petrol and spirits, are exposed to a source of ignition. These types of liquid are flammable by design and extremely volatile, if not stored safely.

Many settings, including restaurants, bars, garages, construction sites, laboratories, hospitals and petrol forecourts, are at particular risk of Class B fires and must keep suitable fire extinguishers on-site and mandatory fire safety signage to highlight the proper safety procedures of everyone onsite.

Fire extinguishers suitable for Class B fires are powder, CO2 and foam.

Class E fires involve electrical equipment such as heaters and fans, kitchen appliances, and electronics, which are a common cause of fire within the workplace or home.

Co2 fire extinguishers display a black label.

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