To solve the problem of indoor air pollution, we must first understand the indoor air quality standards, and then purify the air through the most suitable indoor air pollution control scheme to achieve the air index suitable for human habitation. Indoor air quality standard The standard indoor air means the most suitable environment for the living room. Simply speaking, the indoor air is non-toxic, odorless, colorless, noiseless and abnormal. The main components in the air include oxygen, formaldehyde, water vapor, particulate matter, etc., and indoor air quality can be detected by professional pollution detection tools. Once the indoor air quality is contaminated and can be identified from the color, smell and sound, the corresponding indoor air pollution control plan and measures should be taken immediately. Causes of indoor air pollution Environmental experts test and test indoor air, and there are several main reasons for indoor air pollution: 1. Contamination of decorative materials Decorative materials are the most important factors in indoor air pollution. Decorative materials such as paint, paint, plywood, particle board, foam filler, interior wall coating and plastic veneer contain high formaldehyde, benzene, toluene, ethanol, chloroform and other organic vapors. At the same time, all of these substances are carcinogenic. 2, construction pollution In general, constructions in winter will be provided with antifreeze, which will ooze toxic ammonia. There is also the formation of radioactive materials in the soil and buildings in the stone, floor tiles, tiles in the building, it is a colorless and odorless natural radioactive gas, which is extremely harmful to the human body. 3. Outdoor air pollution The outdoor air pollution is serious, and it can also affect the indoor air quality. 4, kitchen fume Studies have found that cooking and smoking are the main pollutants of indoor burning. The smoke components in the kitchen and the smoke components in cigarettes are extremely complex, many of which are carcinogenic. 5, the body's own pollution Therefore, the human body's own pollution refers to the pollution caused by the body's own metabolism and the volatile components of various domestic wastes, such as respiratory tract, sweat glands, makeup, and mosquito killing, which can pollute indoor air quality. Indoor air main testing project 1, formaldehyde Formaldehyde is mainly a chemical gas left over from the decoration materials. When the human body inhales at a high concentration, serious respiratory irritation and edema, eye irritation, headache, and bronchial asthma can be induced, and nasopharyngeal tumors and leukemia can also be caused. 2, benzene Benzene is a carcinogen. Long-term inhalation can damage the body's circulatory system and hematopoietic function, leading to leukemia. Long-term inhalation of benzene in pregnant women can cause fetal malformation and miscarriage. 3, toluene Toluene toxicity is relatively small compared with benzene, but the irritating symptoms are more serious than benzene. Inhalation may cause tingling, itching and burning sensation in the throat; severe collapse and coma may occur. 4, xylene Xylene has a stimulating effect on the eye and upper respiratory tract. At high concentrations, it has an anesthetic effect on the central nervous system; skin contact often occurs with dry skin, chapped, and dermatitis. 5, ammonia Ammonia is mainly a residue of human metabolism, and it can also be derived from building materials such as antifreeze, expansion agent and concrete additives. 6, helium æ°¡ has a high affinity for human body fat, especially when sputum is combined with the nervous system, the harm is greater, and a large amount of inhaled sputum can cause leukemia and lung cancer. Indoor air pollution control plan 1. Ventilation method It is used in the renovated living room with light odor, good ventilation and long-term ventilation. For a room with a heavy pollution and poor ventilation, it is difficult to achieve the effect of removing odor. 2, plant law Green plants such as spider plants and aloe vera are placed in the living room. Some plants have the effect of absorbing harmful gases, and there is also the effect of beautifying the living room, but the onset time is slower. 3, fragrance method Use air fragrances, bags of aromatic plants, tea, pineapples, etc. to combat indoor air odor. However, air fragrances and bagged aromatic plants basically play a covering role or a psychological effect, and do not play a role in eliminating pollution fundamentally. 4, live carbon adsorption method The principle of activated carbon adsorption purification is used to adsorb macromolecular gas suspended particles in the air, and the purpose of filtering and purifying air is achieved by forced air circulation. At present, the best living carbon adsorption method has an air purification system. 5, chemical law The so-called chemical method is to use the principle of chemical decomposition reaction. At present, there are many products such as formaldehyde trapping agents on the market to remove odor. This method is more suitable for the treatment of materials such as plates during the decoration process to prevent decoration pollution. Tzm Tubes,Tzm Pipes,Tzm Duct MoSi2 Heating Elements CO.,LTD , http://www.nsmolybdenum.com