With the push toward “Greener environment”, inert gases are the best choice as they are the most environmentally friendly of all of the Clean Agents. Inert gases are defined as using one or more of the gasses Nitrogen, argon, or helium.
CO2 is also found in one of the inert gas blends. Inert gasses work by removing the oxygen in the hazard to a point where it will not support a fire, but still high enough to support life. Naturally occurring Gases often used as blends, these blends are used to reduce oxygen to below 15% and above 12%. Oxygen levels below 15% will not allow a fire to burn as the oxygen is simply not there to fuel the fire. Levels of Oxygen between 12% and 15% is adequate to sustain human life. Oxygen levels between 12% and 10% will show visible signs of effects asphyxiation Oxygen levels below 10% are extremely dangerous.
Design considerations when using inert gasses are pressure venting and volume. It is critical to design the system to achieve the correct concentration, and not remove too much oxygen in the room. Plus, venting of inert gasses is important as it displaces the air volume in the hazard area. Artius PP can assist in determining which agent is best suited to protect the hazard area (includes detection and control for the system).