In recent years, more and more attention has been paid to prevention and control of atmospheric pollution, and VOCs governance has drawn the attention of various industries. VOCs mainly come from the combustion of coal, natural gas and other gases produced after some, or some other chemical gases. Its harm to human beings can be divided into the following points: 1, prone to fire or explosion This type of gas is particularly widely used in chemical plants, under normal circumstances no poison or low toxicity, but basically all belong to flammable and explosive materials, so the majority of enterprises in the process of using a certain Pay attention to fire prevention. 2, VOCs can cause harm to human body For example, in many room decoration we smell a lot of strange smell, if the concentration is high, people will feel dizzy. In particular, some paint containing benzene, toluene and the like, will seriously damage the human nerve, stay in such an environment for a long time may cause cancer. 3, VOCs will become ozone and PM2.5, will cause haze, making the environment less visible and make the body prone to respiratory diseases such as high concentrations of ozone, will damage human skin, but also affect people The respiratory system, reduce the immune system's resistance. Since the hazards of VOCs are so great, we should use a series of VOC cleaning treatment techniques to deal with it, so what are the specific methods? Method one with a special substance to absorb him, so that all VOCs absorbed in the material. For example, activated carbon and the like, the adsorption method is very efficient, consumes very little resources, and has a long history. The technologies are basically mature. The second method uses liquid to absorb the absorbed VOCs in the air and then absorb the VOCs in the air to avoid harming the human body. It can handle a large amount of harmful gases and is highly effective and requires very low cost. Method 3 directly burning gas or destroy its integrity by high temperature, its decomposition into harmless components, the tools it needs is also very simple, the cost is also very small, very easy to use and quick to use. After use we can also use the heat generated to do other things, a reasonable recovery of resources. Method Four Recently, a technique for VOCs cleaning treatment is a method of microbial treatment. We use microorganisms to decompose toxic gases and the tools they use are simple and can not be re-contaminated.