Study on particle filtration performance of high volume air purifier: Experimental results

With the spread of SARS-CoV-2 virus all over world, indoor air quality commercial buildings has received intense attention. The evaluation high-volume purifiers (HAP, CADR≥800m 3 /h) is unprecedented importance. According to national standard GB/T 18801-2015, purification performance HAP and its three different replacement elements was tested by environmental chamber method. results show that particulate matter single effect filter better than composite filter. presence generated activated carbon layer bypass flow leads a difference about 10% between clean delivery rate (CADR) value for count weight In durability test, CADR decreases greatly when smoke volume 1000 pieces due increase resistance electrostatic elimination incense smoke. test standards in 5 countries were compared. Only Korea mentioned purifier greater 960m /h, 50m used. However, sources experimental dust sampling methods, this does not conform China's conditions. analysis will provide reference formulation relevant methods