A CO2 fire extinguisher is a fire extinguishing equipment that uses carbon dioxide (CO2) as a fire extinguishing agent. It is suitable for fires involving electrical equipment, oil, gas and general combustibles. The working principle of a CO2 fire extinguisher is to extinguish the flame by injecting high-pressure CO2 gas to remove oxygen from the fire area. The advantages of CO2 fire extinguishers include: 1. High efficiency: CO2 gas can quickly extinguish flames and effectively control the fire. 2. No residue: CO2 gas will not leave any residue during the fire extinguishing process and will not cause damage to equipment and items. 3. Non-conductivity: CO2 fire extinguishers are suitable for electrical equipment fires because CO2 gas is not conductive and can be safely used to extinguish electrical fires. 4. Environmental protection: CO2 is a non-toxic, non-polluting gas and harmless to the environment. However, CO2 fire extinguishers also have some limitations: 1. Limited action time:…