Use of dry powder fire extinguishers?
Dry powder fire extinguisher is suitable for oil, electric fire, and has the disadvantage that it is difficult to clean after use.
In four words I can sum dry powder fire extinguisher use formula, lift, pull, shake, pressure.
The explanation is to bring up the fire extinguisher, pull the safety pin, hold the fire extinguisher, spray the nozzle at the root of the fire source, and press the handle to spray the four actions of the dry powder.