Red 4.5 Kilogram Carbon Dioxide Type Fire Extinguisher

A 4.5 kilogram carbon dioxide (CO2) type fire extinguisher is a type of fire suppression device that uses carbon dioxide gas to extinguish fires. CO2 fire extinguishers are commonly used for Class B and Class C fires, which involve flammable liquids and electrical equipment, respectively. The 4.5 kilogram size refers to the amount of CO2 gas contained within the extinguisher, which is typically stored under high pressure. When activated, the CO2 gas is expelled from the extinguisher, reducing the oxygen concentration in the surrounding area and smothering the fire. CO2 fire extinguishers are considered to be a clean and effective method of fire suppression, as they leave no residue behind and do not conduct electricity. However, CO2 fire extinguishers should only be used for Class B and Class C fires, and should not be used for Class A fires (fires involving solids).