After the new house is decorated, the formaldehyde content of indoor paint, coating, adhesive and furniture is often higher. In order to remove formaldehyde, many people place so-called "super absorbent" activated carbon at home. But at the same time, there are rumors on the Internet that the adsorption capacity of bamboo charcoal and activated carbon to formaldehyde is low, and even formaldehyde can be released. A lot of people have a question: is activated carbon really useful? This question, a small answer.

　　活性炭又称活性炭黑，包括煤、竹炭、椰壳、果壳等多种内径的孔隙，其应用领域和对污染物的吸附是不同的。一般来说，活性炭有以下几种用途:

　　Activated carbon is also called activated carbon black, including coal, bamboo charcoal, coconut shell, fruit shell and other inner diameter pores. Its application field and adsorption of pollutants are different. Generally speaking, activated carbon has the following uses:

　　除污水、防驻扎防霉、室内、室内。很多朋友在装修房子时会通过各种方式购买一些活性炭，想通过吸收活性炭对室内空气包括甲醛进行处理。实际上,活性炭的吸附效果比较有限,它只能吸收挥发在空气中有害气体在自由状态,并不能去除污染来源,用它来问题的轻度甲醛是好的,卧室更严重的污染,其吸附效果不明显。活性炭的特点之一是它很容易吸附饱和，虽然取出一个太阳就可以重复利用，但重复利用活性炭的吸附能力会大大降低，所以需要定期更换。同时，当温度、压力变化或接近饱和时发生二次沉淀，造成更严重的污染。综上所述，活性炭具有以下五个特点:

　　In addition to sewage, anti mildew, indoor sterilization, indoor environmental protection detoxification. Many friends will buy some activated carbon through various ways when decorating the house, and want to treat the indoor air including formaldehyde by absorbing the activated carbon. In fact, the adsorption effect of activated carbon is relatively limited, it can only absorb the harmful gases volatilized in the air in the free state, and can not remove the pollution source, it is good to use it to solve the problem of mild formaldehyde, bedroom pollution is more serious, its adsorption effect is not obvious. One of the characteristics of activated carbon is that it is easy to absorb and saturate. Although it can be reused after taking out a sun, the adsorption capacity of the reused activated carbon will be greatly reduced, so it needs to be replaced regularly. At the same time, when the temperature and pressure change or close to saturation, secondary precipitation occurs, causing more serious pollution. In conclusion, the activated carbon has the following five characteristics:

　　1、活性炭是分子筛，其内部的孔隙可以吸收包括甲醛在内的各种物质。(可达到吸收甲醛的效果)

　　1. Activated carbon is a molecular sieve, and its internal pores can absorb various substances including formaldehyde. (it can absorb formaldehyde)

　　2、活性炭的很便宜，不需要交IQ税，要发挥kg的单位效果，请购买小包装活性炭吸附甲醛。(体积效应)

　　2. The price of activated carbon is very cheap. No IQ tax is required. To give full play to the unit effect of kg, please buy a small package of activated carbon to absorb formaldehyde. (volume effect)

　　3.于活性炭的再生，你自己无法再生活性炭，太阳、水甚烤箱都无法达到工业再生的效果。活性炭不贵，请买新的。(便宜，但)

　　3. As for the regeneration of activated carbon, you can't regenerate the activated carbon by yourself. The sun, water and even the oven can't achieve the effect of industrial regeneration. Activated carbon is not expensive. Please buy a new one. (cheap, but not renewable)

　　4. 活性炭不应作为去除甲醛的主要方法(更好与其他方法一起使用来去除甲醛)

　　4. Activated carbon should not be used as the main method to remove formaldehyde (it is better to use it together with other methods to remove formaldehyde)

　　5、装修应以窗户通风为主，活性炭可用于死角处理。

　　5. The decoration should be based on window ventilation, and activated carbon can be used for dead angle treatment.

　　所以，活性炭的推广有很强的去除甲醛的能力被商家夸大了，几包活性炭就可以室内甲醛污染所以神奇的事情不会发生。用活性炭去除甲醛只能治标，不能治本，它只能轻度甲醛超标空间小的问题，如果过于依赖活性炭，可能会造成不良后果。

　　Therefore, the promotion of activated carbon has a strong ability to remove formaldehyde, which is exaggerated by businesses. A few bags of activated carbon can solve indoor formaldehyde pollution, so magical things will not happen. Using activated carbon to remove formaldehyde can only cure the symptoms, not the root cause. It can only solve the problem of small space for slight formaldehyde exceeding the standard. If we rely too much on activated carbon, it may cause adverse consequences.