Carbon dioxide, or CO2, is commonly used in fire prevention because it is an effective fire suppressant and can help to extinguish fires quickly. CO2 is a colorless, odorless gas that is non-conductive, non-corrosive, and non-damaging to equipment, making it a popular choice for use in industrial, commercial, and other applications.

CO2 works by displacing oxygen from the air surrounding the fire, which starves the fire of oxygen and helps to extinguish it. CO2 is particularly effective on Class B and C fires, which involve flammable liquids and electrical equipment, respectively. CO2 is not recommended for use on Class A fires, which involve ordinary combustibles like wood, paper, and cloth, because it can blow burning material around and spread the fire.

CO2 fire suppression systems are commonly used in areas like computer rooms, data centers, and other areas with sensitive electronic equipment. CO2 extinguishers are also commonly found in commercial kitchens, where fires involving cooking oils and other flammable liquids can be quickly suppressed by the use of a CO2 extinguisher.

It is important to note that while CO2 is an effective fire suppressant, it can also be dangerous if used improperly. CO2 displaces oxygen and can cause asphyxiation in poorly ventilated areas, so it is important to evacuate the area before using a CO2 extinguisher or activating a CO2 suppression system. CO2 should also be handled by trained professionals to avoid any potential harm to individuals or the environment.