TESTING OF THE EFFECTIVENESS OF AIR PURIFIERS

摘要

A series of total volatile organic compounds (TVOC) removal performance measurements was conducted in the optometry clinic in the Hong Kong Polytechnic University. As to test the overall performance of the air purifier in removing TVOC, the air purifier is installed in the waiting area of the clinic connecting with the air distribution system above the ceiling. The significance of adopting titanium dioxide (TiO2) on chamber testing and TVOC removal performance tests were measured for comparison. The results indicated that the effectiveness of air purifier was better with installed titanium dioxide coated media. The air change rate equivalent to titanium dioxide filter was about 1.572 hr-1 which implied that it dominated 62% of the whole removal performance of the air purifier.