Water Mist Fire Extinguishers: A Modern Fire Safety Solution Water Mist Fire Extinguishers are modern fire fighting solution that provide fire suppression with the help of fine mist water droplets that have the potential to extinguish the flames completely. The very tiny droplets produced by a water mist fire extinguisher suck away the heat from the fire and cool it rapidly, making it less powerful. This kind of extinguisher is perfect for areas containing delicate equipment such as server rooms and data centers that traditional water-based systems can destroy. Capable of suppressing both Class A fires (ordinary combustibles) and Class C (electrical) fires, the Water Mist Fire Extinguishers represent a very ecological and efficient fire-suppressing agent.