CO2 fire extinguishers contain pure carbon dioxide which is a clean extinguishant, leaving no residue. Suitable for class B flammable liquid fires (petrol, oil, solvents), and recommended for use on live electrical equipment.Our CO2 fire extinguishers are highly effective at tackling fires fuelled by flammable liquids and electrical equipment; this makes Carbon Dioxide fire extinguishers perfect for situating in offices. CO2 fire extinguishers are usually just one half of an extinguisher team, often being paired with either a water or foam extinguisher.Carbon Dioxide fire extinguishers are ideal for use on Class B Fire Risks. The SAFE PRO carbon dioxide fire extinguishers are available in 2kg, 3kg, and 4.5kg standard.