Fire suppression systems are indispensable to ship safety. These automated systems quickly detect fires and respond immediately, protecting personnel, cargo, and the ship itself. These systems automatically release firefighting agents like water mist, foam, or carbon dioxide (CO2) to suppress or extinguish the flames. By rapidly containing fires, fire suppression systems prevent them from escalating and causing more widespread destruction.

Carbon dioxide fire suppression systems are among the most effective ways to extinguish fires without spreading the flames or damaging equipment. Unlike water-based suppressants that reduce heat, a CO2 fire suppression system floods the area with carbon dioxide, dropping oxygen concentrations to a level that can no longer sustain the fire.

However, CO₂ displaces oxygen, creating a dangerous asphyxiation risk for anyone in an enclosed space. Proper safety precautions are essential, as high concentrations of CO2 above 5% can be hazardous to personnel, posing an asphyxiation risk.