Carbon Dioxide (CO2) was the original “clean" gaseous fire suppression agent pioneered by Kidde over 80 years ago. Since then it has safely extinguished more fires than any other gaseous agent. Highly versatile, it can be used for total flooding or in local application. Another big advantage is that it is relatively inexpensive, with CO2 readily available world wide for low-cost re-charge. CO2 occurs naturally in the environment and therefore has no restrictions on its use in fire fighting. While it is widely used in unmanned applications, it is also suitable for use in manned areas provided suitable safety measures are adopted.