& shy; Recently, a video of a foreign man using a vacuum cleaner to put out the fire became popular on the internet. In dozens of seconds, the man used a vacuum cleaner to put out the fire. Netizens forwarded this video one after another and commented that “I didn’t expect the vacuum cleaner to save my life”. & shy; Can vacuum cleaners really put out fire? Yesterday, the reporter consulted the Fire Department. Firefighters said that this method is not practical. When citizens encounter fire, they still need to call 119 to alarm and other effective ways to solve it. & shy; The fire was destroyed in 30 seconds & shy; Vacuum cleaner fire fighting video became popular & shy; Yesterday, the reporter found this video online. In the video, a man poured combustible liquid on a ground of about 1 square meter, then lit two paper towels to ignite the liquid. After a while, a flame of more than one meter rose on the ground. & shy; Facing the fire, the man calmly took out the vacuum cleaner and dragged it back and forth to the fire floor like sucking dust. The fire on the ground became smaller and smaller. After more than 30 seconds, the fire went out and the vacuum cleaner was unscathed. & shy; According to the introduction, this foreign man is a well-known Electrical Experiment maniac and likes to do experiments with household appliances. & shy; After this video was posted online, many netizens forwarded it and shouted “magic”. Some netizens believe that the use of vacuum cleaners to put out fire is the principle that the flame will be extinguished without oxygen. Vacuum cleaners draw the air around the flame to prevent combustion. & shy; Some netizens said that if they put out the fire with a common vacuum cleaner in their own home, the fire may have been burnt out. & shy; Some netizens said that if other items caught fire, I don’t know whether the vacuum cleaner has such effect. & shy; This method is not practical & shy; May delay fire fighting & shy; Can vacuum cleaners really become “fire extinguishing artifacts”? Yesterday, the reporter sent this video to the firefighters. After watching the video, firefighters said that this method was unreliable. The efficiency of using vacuum cleaners to put out fire is not high, and there is no way to quickly put out the initial fire. Citizens are not encouraged to use this method. & shy; “using a vacuum cleaner to put out the fire is to use the suction of the vacuum cleaner to prevent the combustion from contacting with the surrounding oxygen, but it is limited by the material of the vacuum cleaner and cannot effectively put out the fire.” Firefighters said that the hot gas removed by the vacuum cleaner may not ignite the vacuum cleaner, but the vacuum cleaner catheter itself cannot resist the high temperature and is easily damaged. Once the fire is too large, the vacuum cleaner will have a fire extinguishing speed of less than rate of burning. Even if the vacuum cleaner can put out the fire, in less than a minute or two, the vacuum cleaner has been damaged, which may delay the fire. & shy; “if the fire is not flat but irregular objects, the surface fire cannot be destroyed. It is also the most reliable fire extinguisher, which can prevent the spread of fire.” Firefighters reminded that the fire scene changed rapidly. When citizens encountered fire, they still had to call 119 to call the police and other effective ways to solve it. (Reporter Ma Liqing)