摘要：评述了近几年来国内外的纤维过滤理论与技术的研究及发展状况,讨论气体过滤基本机理,给出了捕集效率和压力降理论计算公式最新研究成果,指出了纤维过滤理论需进一步研究解决的问题。

关键词： 滤料;纤维过滤;过滤效率;过滤器压力损失

Abstract：T he research and development of theory about filtration of fibrous filter in domestic and international during the last few years are comment the mechanism of filtration is discussed． T he newest formulation of collection effciency and pressure drop and the problem needed to solve in later are also given． 

Keywords：filtration materials；fibrous filtration；collection efficiency；pressure drop