| Recent years, with the development of scientific technology,we attach importance to indoor air pollution problems of dwelling house,but they neglect air pollution problem of the office. Research has suggested that, except some daily life environment, the office is the place where people stay most of the time. People spend 37.5% of the time in the office, so the air quality problem of the office is required to arouse people's attention.According to understand, people evaluation office environment quality mainly from the air quality office space to see, because this will directly affect people's physical health, and then affect people's work efficiency.Now, indoor air pollution is mainly stem from formaldehyde, benzene, ammonia and so on, and these pollutants can damage people's central nervous system, respiratory system and skin, making people feel faint and pruritic. Formaldehyde has been identified as carcinogens, and they mainly come from fitment and air-condition. The fitments include carpentry board, compound floor, office chair, adhesive coating and paint that come from the bookcase. Closed indoor environment make exchange rate of air decrease, and thus fresh air can not be aquired.Indoor office environment pollution can't be underestimated , whose harmfulness is gradually recognized by people. This paper summarized the methods of purificating the formaldehyde home and abroad, and get these conclusions:chromatography method can remove formaldehyde effectively, and its ultimate product is water and carbon dioxide that are very safe to human body . Compared with previous technology,it doesn't need lamp-house and energy, but it can purify formaldehyde completely; Plant not only beautificate office environment, but also can absorb toxic substances; Tea do have absorbs formaldehyde role, different types of tea water, different tea tea methods, and cooked for formaldehyde, the number of different absorption effect is different also .And tea, facilitate easy easy in use in everyday life.
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