Normally we use the fire extinguisher to do fire protection. Although it is inexpensive, the effective firefighting time is very short, 20 seconds. When facing oil fires, wooden fires and paper fires, the fire load is very high and it is very difficult to decrease the temperature of the fire surrounding. Due to the high temperature and not easy to put off the fire, it is very dangerous and very easy to have the phenomenon of Re-burn. If facing the scatter fire and the surrounding with the heavy smoke, we could distinguish where the fire is to suppress it. Under this circumstance, the damage is very huge that could not image. If using ABC extinguishers and foam extinguisher, it is very difficult to clean up the environment and could recover the damage of electric appliances. 
Hence we apply the new water mist firefighting technique to confront the fires. When facing the narrow passageway in factories with rapid and scatter fire, we develop the mobile and easy to operate equipment, Mini firefighting car to extinguish the fire and reduce the losses of our properties.