空气净化器去除细粒子性能实验研究

Research on Filtration Performance of Air Cleaner

对空气净化器去除细粒子的性能进行实验研究。结果表明,不同粒径区间颗粒物的洁净空气量（CADR）相差很大;降低空气净化器的运行风量,0.3~0.5μm颗粒物一次通过效率减小,0.5~3μm颗粒物一次通过效率不变;延长测试时间会对不同粒径区间颗粒物洁净空气量的测量结果产生不同影响。

A serial of experiments are done in the paper to study the filtration performance of air cleaner. The results show that the clean air delivery rates（ CADR） of particles with different size ranges vary widely. After decreasing the air volume of air cleaner,the single- pass removal efficiency of particles with size between 0. 3- 0. 5 microns reduces,while for the particles whose size is between 0. 5- 3 microns,it does not change. Besides,prolonging testing time will influence CADR test of different sizes particles.