Nitrogen (N2), also known as IG100, uses ammonia gas, which accounts for 78% of the atmosphere, as the fire extinguishing agent. It fully integrates the design concept of the new era fire extinguishing system, making the product successfully have the functions of protecting the environment and efficient fire extinguishing. It has the characteristics of protecting the ecological environment of the earth, ensuring safety and hygiene without obstructing vision, no pollution caused by fire extinguishing agents, and long-lasting fire extinguishing effectiveness. Nitrogen can be separated and produced from the air, with a wide range of sources and low filling costs. The fire extinguishing mechanism is to dilute the oxygen in the combustion zone, achieving the purpose of air breathing fire extinguishing.