FM200 systems are based on many years experience in the design, supply, installation and commissioning of gaseous fire fighting systems. During this time Halons have provided industry and commerce with a unique and versatile extinguishant to respond to most fire protection needs. The Montereal Protocol presented the fire protection industry with a most demanding challenge – to find a replacement for Halons. FM200 is a colourless gas which is liquified under pressure for storage. Like Halon 1301 it has a low toxicity level and is superpressurised with Nitrogen to 24.8bar (360psi). It rapidly extinguishes most commonly found fires through a combination of chemical and physical mechanisms.