Dr. LIU Jingxian, born in 966, is a professor of Northeastern University, director of the Filter Testing Center. He is engaged in industrial ventilation and dust removal, filter materials, mine ventilation and dust removal, and geothermal control. He has developed domestic PPS fiber and filter, sea-island fiber filter, spunlace filter, renewable air filtration filter, and thermoelectric and piezoelectric filter. He has drafted over 20 ISO international standards, national standards, industry standards, and group standards for filter materials, and has applied over 15 invention patents. He once visited the Particulate Matter Laboratory and Filtration Research Center at the University of Minnesota in the United States for a year.
