Abstract: The current national standard of air purifier GB/T 18801-2015 recommends that using the laser particle counter to measure the clean air delivery rate of particulate matter and the particulate mass concentration tester to measure cumulate clean mass of particulate matter. It is meaningful to explore the reliability of the particulate mass concentration tester for measuring the clean air delivery rate of particulate matter by analyzing consistency and uncertainty of measurement result of the above two devices. The results indicate that the measurement results of the clean air delivery rate for particulate matter obtained by TSI 8530 and TSI 3340A showed high consistency, and displayed low uncertainty of measurement.

Key words: Laser particle counter, Particulate mass concentration tester, Particulate matter, Clean air delivery rate