Inert gas systems use nitrogen gases to extinguish the fire. They are also made as a hybrid water-inert gas system to further enhance system capabilities. See the hybrid system specifications below. Inert gas works by attacking oxygen and heat portion of the fire in the room.
Inert Gas Comparison
There are several advantages to using an inert gas system. Some of which include, availability of materials and cost. However these are not the sole reasons, as shown below.