In order to solve the imbalanced carbon dioxide concentration in the office, on the day of the experiment, a test will be carried out by evenly dividing the office into 9 sections, each district will be about 8*11 meters and thus makes the area of the district around 99 square meters. The test result is shown in the table 2 which measured during the period that has the highest carbon dioxide concentration of the day. Number TS 08、TS 02 and TS 03 are the sections with the highest carbon dioxide concentration, the reason is because the entrance has more staffs in and out. Moreover, there are three printers in the area. Thus, people in and out frequently compound with the usage of the electronic equipment cause a high level of carbon dioxide concentration in these two areas.