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One of the most dangerous situations that firefighters can face is a rare but strong effect called Backdraft . Although the definition of Backdraft is somewhat different, it is generally a sudden explosion of hot gases, as fresh oxygen enters the smoldering airtight room. Professional firefighters are trained to recognize signs of potential round paper, but even the most experienced firefighter can be surprised. The room would still be extremely hot, but there would be very few visible flames. Instead, the room would fill a thick cloud of smoke, often yellow or brown. Firefighters recognize the presence of yellow or brown colored smoke as a sign of incomplete burning. This is the classic warning signals of the potential backdrop.

Because fire is an oxygen that continues to combine, the air pressure inside the room may be noticeably different from the air pressure outside the room. Fire wants to draw more oxygen through any available opening, which often inDe to the fact that they suddenly appear and disappear around the door or window frame. The difference in air pressure can also cause windows outside the rattle or vibrate. These are other signs of potential firefighters Backdraft are trained to observe.

If the door to the burning airtight room is suddenly open, a fresh oxygen supply is delivered to the smoldering fire. The heat of the room also heats up volatile gases, resulting in a powerful explosion and immediate flames. This is a dreaded cluster and can hurt or kill anyone who enters the room. Fortunately, they are a rare event, but the restart of the fi only takes only one or cause further structural damage.

If there is a suspicion of a potential backdraft, firefighters can use tools to ventilate a room from the highest point, such as the top of the door. This allows heated gases to escape without drawing in sufficientFresh oxygen to create combustion. Once hot gases are ventilated, the chances of forming logs will be significantly reduced. Fire can still reign with other oxygen, but the catastrophic explosion of gases is much less likely.