Three life-sustaining elements: air, water, food air: 7 days a person can not eat two days without water, but every adult moment without air, about to be sucked 15KG day air, eating 1.5 KG food, drinking water 2KG. Respiratory immunity than human gastrointestinal system is much worse. Our air pollution, urban residents 3/4 breathe clean air. Modern 80 to 90% of the time spent indoors, indoor air quality is directly related to human health and life, the quality of work. Characteristics of indoor air pollutants affect range of indoor air pollution is different from specific industrial and mining environment, a large number of people involved, including almost the entire age group. Long contact time in the long-duration exposure to indoor air pollution in the environment, the role of the human body for a long time. Low concentrations of pollutants to indoor pollution is generally not exceeded, the body will not have a significant short-term performance. Many kinds of pollutants at the same time thousands of bell air pollutants in the human body, can occur complex synergy, additive effect, independent or antagonism. Health hazards unclear long-term effects of these low concentrations of indoor air pollution on the human body and its mechanism of action is not clear threshold dose, effect on the human body reaction is small, slow and late-onset. Indoor pollutants staff and furniture: paint, carpet distribute VOCs. Clothing / ornament dissemination thereof. Windows closed: the lack of fresh outdoor air. Smoking: smoke, benzo (a) pyrene (Bap) and so on. Carcinogenic products: market 70,000 kinds of chemical cleaning products. Copiers, appliances: distribute ozone, dust and electromagnetic radiation. Pesticides: Pesticides contain carcinogenic substances. Bathroom: mold, odor. Building renovation: formaldehyde, VOCs, dust. What kind of new style? Inlet near the parking lot, outdoor pollutants into the interior. Indoor air pollution on the health effects of formaldehyde: 2004 WHO Bulletin: formaldehyde identified as carcinogens. Nerve poison, long-term exposure to formaldehyde person's memory, sensitivity, balance, coordination function occurs in varying degrees to reduce, increase the detection rate of rhinitis can produce embryotoxic recognized cause of fetal malformation important environmental pollutants. Formaldehyde can cause dermatitis, liver detoxification function in vivo than formaldehyde can cause liver damage. Stimulation can cause acute rhinitis, sneezing, coughing, chronic exposure to formaldehyde condition, which can cause asthma. Particulate Matter: respiratory diseases: such as asthma, bronchitis, lung cancer, fever, cough, bronchoconstriction and pneumonia, more dangerous to children. Increased mortality of heart disease. PM2.5 every rise 10ug / m3, total mortality and cardiovascular disease mortality rose by 4.0% and 8.0%, respectively. PM10 each additional 10ug / m3, an increase of 6.0% of lung cancer deaths. Irritate the eyes and nose, or dryness and other allergic reactions. Microbes and other harmful substances carrier. When the performance of 10 kinds of Indoor Air Pollution 1. get up every morning, feeling oppressed, sick 'or dizziness; 2. Family members often susceptible to colds; 3. No smoking, environmental tobacco smoke have little contact, but often feel uncomfortable throat, a foreign body, shortness of breath; 4 children often coughing, sneezing, decreased immunity, newly renovated house children do not want to go back; 5. family often skin allergies and other illnesses, and is a mass of; 6. family There are a disease, but after leaving this environment, there are significant changes and improvement in symptoms; 7. long infertile couples, the cause could not; 8. Pregnant women under normal circumstances, the detection of fetal malformations; 9. The new move After or newly renovated indoor plants is not easy living, easy to yellow leaves, withered, especially some of the great vitality of the plant is also difficult to grow normally; 10 newly renovated home or buy new furniture with a pungent, irritating odor, such as glare but the smell still lingers over a year. 1. Quality control of indoor air pollution controls to reduce and eliminate the source of indoor pollution is to improve indoor air quality, improve the comfort of the most cost-effective way. Selection and development of green building materials and decoration materials are very important. Do not smoke indoors, buy green furniture, caution or less chemicals in cosmetics, various aerosols. 2. Ventilation Ventilation is the key to improving indoor air quality. With fresh outdoor air to dilute indoor air pollutants, the concentration decreases. But seriously, if outdoor air pollution (such as storms or inhalation of high concentrations of particulate matter or other contaminants) is necessary to avoid ventilation. 3. The physical adsorption type air purification, chemical type and ionization type. Physical type purifier membrane through one or more layers, the air pollutants and suspended particulate matter attached to the top of the membrane, thereby purify the air; type is the use of chemical and catalytic decomposition effect removed harmful gases; ionization model is the use of electricity discharge, plasma and UV odor, kill bacteria. Create a healthy and comfortable indoor environment to fully understand the essence of indoor air quality and its impact on health, in practice constantly open up development, and innovation. Proper publicity and guide the masses. To develop the necessary, meet the conditions of indoor environmental quality management system, norms and standards. Build construction, materials and other types of databases. Indoor environmental quality evaluation carried out with pre-evaluation. Rely on technological progress, the development of new materials and products, to create a healthy and comfortable indoor environment, all aspects effort. Summary: Indoor air pollution is caused by many factors; increase in man-made chemicals is an important factor in the incidence of growth; how accurate and reasonable judgment of pollutants caused by the disease is quite complex and difficult task, many "modern disease pathogenesis mechanism is unclear ! source control, ventilation, air purification equipment is an important aspect to improve indoor air quality! indoor air quality is directly related to the comfort, health and productivity of people!