Most of families have installed fire extinguishing equipment but less of them remember to change the dry powder of fire extinguisher regularly, therefore i aimed at this problem and redesign the fire extinguisher to Cooling Pistol which uses gas bottle instead of using human power to replace dry powder. It will make users remember it's time to replace the gas bottle of Cooling Pistol themselves at the same time. There is a flashlight consumptions electric power by solar cell, which provides the consumption of the luminous mode of Cooling Pistol at the same time. The luminous mode is for user to find out where Cooling Pistol had installed quickly at night.