1, the correct use formula of the fire extinguisher 1, lifting, lifting refers to lifting the fire extinguisher. The most common dry powder fire extinguisher is currently used. When lifting the fire extinguisher, check the pressure gauge of the fire extinguisher to confirm whether the pointer is in the green area. Don't forget to stand in the upwind direction of fire;

2, the correct use of the fire extinguisher formula 2, dial, dial is to unplug the safety bolt, when using, should first mention the fire extinguisher to the fire site, put down the fire extinguisher, pull out the safety bolt. When carbon dioxide fire extinguishers are used outdoors, they should be sprayed in the upwind direction. If it is used indoors in a narrow space, the operator should leave quickly after the fire is put out to prevent suffocation.

3, the correct use of fire extinguishers Formula 3, grip method, grip method refers to one hand holding the handle of the horn root, the other hand holding the pressure handle of the switch valve. For carbon dioxide fire extinguishers without spray hose, it is necessary to pull the horn up 70-90 degrees;

4, the correct use of fire extinguishers Formula 4, pressure, pressure is the most commonly used opening method of dry powder fire extinguishers, that is, pressing the handle method. The key of this step is to lift the fire extinguisher to a proper distance from the fire source, turn it upside down for several times to loosen the dry powder in the barrel, then aim the nozzle at the place where the fire burns most violently, pull out the safety pin, and press the press handle, and the fire extinguishing agent will be sprayed out to extinguish the fire. In addition, the rotation method can also be used.