People’s awareness of fire safety continues to increase, and more and more families buy heptafluoropropane hfc-227ea fire extinguishers. But there are many types of fire extinguishers, which are not easy to figure out. According to the manufacturer of heptafluoropropane hfc-227ea fire extinguishing agent, fire extinguishers can be divided into foam, carbon dioxide, dry powder, halogenated alkane, acid and alkali, clear water, etc. The three types of fire extinguishers that are used more frequently in life are foam, carbon dioxide, and dry powder, which are suitable for fire fighting. Corresponding to the initial fire, the operation method and use attention are also different.

　　According to fire safety experts, when using a foam fire extinguisher, hold the handle of the fire extinguisher with your hands and do not carry it horizontally. When extinguishing a fire, hold the lifting ring with one hand and the bottom of the barrel with the other hand, turn the fire extinguisher upside down, point the nozzle at the fire source, and shake it vigorously for a few times to extinguish the fire. But be careful not to spray together with water at the same time, so as not to affect the fire extinguishing effect. When extinguishing electrical fires, try to cut off the power first to prevent electric shocks.

　　As carbon dioxide can cause suffocation, you should keep ventilated when using carbon dioxide fire extinguishers, and people should stand at the upper air vent when putting out the fire. In addition, this type of fire extinguisher is filled with high-pressure liquid carbon dioxide, which can cause frostbite if used carelessly, so you should hold it at the glue nozzle when using it, and better wear gloves. When using a dry powder fire extinguisher, first open the safety pin, hold the nozzle with one hand, aim at the fire source, and pull the ring with the other hand to extinguish the fire source. Before use, turn the cylinder upside down several times to loosen the dry powder, and then open the air to spray the powder, which will improve the fire extinguishing effect. When using a jet-type household fire extinguisher, press the spring button on the top of the fire extinguisher, aim the nozzle at the fire, and spray to extinguish the fire. When using a throw-type household fire extinguisher, you only need to throw it into the fire. After the container is broken, the dry powder will leak out to extinguish the fire.