Waterless fire suppression systems work by releasing a gas or mixture of gasses into the air, generally with the aim of reducing the amount of oxygen in the air that feeds the flames.
TYPES OF GAS SUPPRESSION SYSTEM
FM-200/CLEAN AGENT
FM–200 works by removing heat from a fire so that combustion cannot be sustained, its unique characteristics also prevent re-ignition. … The gas is discharged through a piping network into the protected area, where it is applied to extinguish the fire.
INERGEN®works on a principal called oxygen displacement. Oxygen displacement works by reducing the oxygen level in a room, so a fire cannot “breathe”. The level at which a fire can no longer exist varies and very much depends upon what is burning. … The oxygen displacement principle lowers oxygen levels to below 15%.