Three different air purifierunits were available for test, two Photo-Catalytic Oxidation units (PCO2 and PCO3)and one gas-phase absorption filter (GPA4).

• 三个不同的空气净化设备(两个光催化氧化净化单元,一个气态吸附净化单元,分别编号为PCO2,PCO3和GPA4)被分别用于空气循环系统中。