The filter performance tester is an equipment specially used to detect the filtration efficiency of particulate matter,and it is very important to measure the protective effect of filter materials.In this paper,masks were used as test samples,and the test data of three kinds of filtration performance testers with photometer,particle size spectrometer and particle counter as test components were compared and analyzed.The results showed that:each of the three instruments has its own advantages,and the accuracy of each instrument was good;considering the cost,the cost performance of particle counter instrument is higher;the precision of pho-tometer and particle size spectrometer was both higher;in addition,the particle size spectrometer instrument can provide users with the classification filtration efficiency of different particle sizes,which is more widely used.This paper provided guidance for the selection of testing equipment for mask filtration performance.
关键词
口罩/过滤效率/光度计/粒径谱仪/粒子计数器/分级过滤效率
Key words
face mask/filtration efficiency/photometer/particle size spectrometer/particle counter/classification filtration efficiency
维普
万方数据