Remove the heat. Remove the oxygen Remove the source of combustion. There are two automatic fire suppression systems in High Tech I. One system uses Halon . Halon is used in High Tech I to remove oxygen. The other automatic system uses water.
Water removes the heat from a fire.
CO 2 is used in handheld fire extinguishers. CO 2 removes the heat and denies oxygen from the fire. There are three types of warning devices in High Tech I, electronic horn or buzzer, flashing lights and mechanical bells. In the areas of the building that use water for fire suppression, there are horns and strobe lights. Where halon is used, in addition to the horns and strobe lights, there is a mechanical bell.