High humidity and high dust concentration in deep coal mines may severely challenge the performance of respirators worn ......

This paper presents an investigation of a new method of purifying cryogenic liquid using sintered metallic wire-mesh fil......

The coronavirus disease 2019 (COVID-19) pandemic has led to a great demand on the personal protection products such as r......

In current years fine particulate matter strained consideration because of its detrimental threat to general health,envi......

过滤精度是指过滤元件对不同尺寸颗粒污染物的滤除能力。单次通过和多次通过试验是评定过滤元件重要参数——过滤精度的主要方法。......