Clean agent fire suppression systems typically use gases that are electrically non-conductive, leave no residue upon evaporation, and are safe for humans. Common gases used in these systems include FM-200 (heptafluoropropane), FE-13 (trifluoromethane), Novec 1230 (fluoroketone), and Inergen (a blend of nitrogen, argon, and carbon dioxide). Each of these agents has unique properties suited to different fire suppression needs, but all share the characteristics that define clean agents: they are clean, safe, and effective at suppressing various fires without damaging sensitive equipment or the environment. These gases are typically selected based on the specific requirements of the space to be protected, including the fire risk, the value of the assets, and the occupancy characteristics.