Testing of the effectiveness of air purifiers

The overall performance of an air purifier in removing toal volatile organic compournds (TVOC) is presented in this paper. The air purifier has been connected with the air distribution system above the ceiling of the waiting area of the optometry clinic in Hong Kong polytechnic university.
The comparison between chamber test and field measurement indicates the effect of room ventilation on the effectiveness of air purifiers.
The significance of adopting titanium dioxide (TiO2) on both TVOC removal performance tests was compared. The results show that the effectiveness of air purifier was enhanced if titanium dioxide filter was installed.