描述了一种实验室安排，用于挑战玻璃纤维介质过滤器、聚合物纤维介质过滤器和两级静电除尘器，使其在100%环境外部空气中工作一年。声明两种滤料对细菌和真菌生物气溶胶的有效性均超过90%。电子除尘器的初始效率为95%或更高，随着时间的推移，随着设备过载而降低。在这一年中，任何过滤器上都没有观察到微生物生长。随后对加载的过滤器进行的测试表明，在连续暴露于90%相对湿度的一个月内，可观察到微生物生长。关键词:1995年，空气过滤器，玻璃纤维，聚合物，静电除尘器，过滤器，测量，气溶胶，细菌，真菌，相对湿度: ASHRAE Trans。1995年，第101卷，第1部分，论文编号3853（RP-625），228-238，9图，3页，参考文献。

Describes a laboratory arrangement used to challenge a glass fibre media filter, a polymer fibre media filter and a two-stage electrostatic precipitator with 100% ambient outside air for one year. States that both of the media filters demonstrated greater than 90% effectiveness on bacteria and fungi bioaerosols. The electronic precipitator demonstrated initial efficiency of 95% or greater, which decreased over time as the device was overloaded. Over the year, no observable microbial growth took place on any of the filters. Subsequent tests on the loaded filters showed that observable microbial growth occurred within a month of continuous exposure to 90% relative humidity.KEYWORDS: year 1995, Air filters, glass fibre, polymers, electrostatic precipitators, filters, measuring, aerosols, bacteria, fungi, relative humidity