Fire Test: Do wet towels have no use in the fire?

I often say that wet towels can't stop the toxic gases, and seeing heavy smoke and damp towels trying to cross is asking for trouble.

Some people retorted that the London fire, Miss Naomi in Taiwan issued a statement: toxic smoke is the biggest obstacle, wet towels really help us all the way to the end, because at least we did not immediately collapse.

This is a question that has been debated for a long time.

I think these arguments are like: "Zhang Feidou Yue Fei."

I said: "Damp smoke" is not useful when a wet towel is used. When Miss Naomi said "toxic smoke", a wet towel helped her. "Poison" = "dark smoke"?

When it was not possible to produce poisonous smoke when the fire started, and what started to produce smoke, it began to discuss "there is no use." In particular, the phrase "fire" completely ignored fire changes. The term "fire" includes the following: Too many different situations and stages. Always mix and discuss different situations together, of course, the answer will be "one country, each statement."

I have done a lot of research on the fire scene. In the 7 deaths of the White Snow Club fire, the concentration of carbon monoxide was 1000 PPM 240 seconds after the fire broke out. At this concentration, it would not cause anyone to die. However, at 300 seconds, the concentration of carbon monoxide rose. 10 times, up to 10000 PPM , people in this environment will be killed 1-3 minutes, that is to say, in the four minutes before the fire in the White Snow Club wet towel to escape, will not be a problem, but after 5 minutes with a wet towel Escape, in the first 1-3 minutes will be screaming, representing the fire at different stages, the harm of smoke is completely different.

In the early days of the fire, there was no temperature, no concentration, no speed, and no large amount of toxic gas. At this time, we could stop some smoke with a wet towel, let us breathe a little comfortably, and be practical and practical, certainly useful.

When the smoke of a fire has temperature, concentration, and speed, a wet towel can block some of the smoke at the same time. However, because the environment has produced a lot of toxic gases, even if a wet towel is used, it will inhale a lot of toxic gases. Soon, It will die from the inhalation of a large amount of toxic gas. Wet towels are not useful in dense smoke environments.

In other words: Wet towels have different functions at different stages of combustion.

So my answer is: "Wet towels can block some smoke, but they can't stop deadly poisonous gases. They are useful for light smoke. Wet towels can stop some ash. Breathing will be more comfortable. It will die because there is not much poisonous gas when smoke is light; it is useless when smoke is heavy, there will be a lot of poisonous gas when there is heavy smoke. Although some smoke will be stopped, even if a lot of toxic gases are inhaled even with a wet towel, it will be used. dead."

Similarly, it can be proved that when a fire plugs a damp towel, it is useful when it is light smoke. It is useless when smoke is thick. The key is not the key to life and death. It is the key to life and death in the face of dense smoke.

in conclusion:

It is not important to discuss whether wet towels are useful or not. First, learn how to judge whether or not wet smoke is a problem.

We placed the detector on the other side of the room and actually burned gold paper to make some smoke. Then the door was covered with a wet towel. You can see that the smoke in the transparent part at the right front is thickened, and there is no room in the room from beginning to end. The inflow of smoke proved that the wet towel could block the smoke, but no carbon monoxide detector in the room where the smoke had drifted in, but the wet towel could block the smoke to stop the gas.

The information in this article comes from the Internet and was reorganized and edited by China Rescue Equipment Network.