When using portable fire extinguishers, it is necessary to master the correct operating methods. Firstly, after discovering a fire, it is important to quickly determine the size of the fire and the type of fire source, and select the appropriate fire extinguisher. Then, follow the steps of "pulling, gripping, aiming, and sweeping": remove the safety pin, hold the nozzle and aim at the base of the flame, aim at the source of the fire, and gradually advance the left and right sweeping until the flame is extinguished. During the firefighting process, one should remain calm, pay attention to their own safety, and avoid the spread of the fire.

In addition to using fire extinguishers correctly, we should also strengthen our awareness of fire prevention and improve our knowledge of fire safety. Regularly check the effectiveness of fire extinguishers to ensure they are in good condition. At the same time, strengthen the maintenance and upkeep of fire-fighting facilities to ensure that they can be quickly activated in the event of a fire. In addition, we also need to learn fire escape skills and master the correct escape methods, so that we can quickly escape the scene in the event of a fire.