INERT GAS PLANT
The plant aims at saturating the air, therefore some gas is injected in the room to saturate the environment.
Advantages: it reduces the use of pipelines; it immediately prevents the possible propagation of flames, it does not damage the things in the room which are not striken by the fire, it is essential in places where electric systems are installed (control room, switchboard room).
Disadvantages: it needs surveing/activating system, system restoration costs. Only for limited surfaces.