Steven Zhai, Founder & Brand Director of FiltEdge LLC and SFFILTECH, has contributed a technical article published on the American Filtration and Separations Society (AFS) website on October 5, 2026.
When Pulse Jet Cleaning Leaves Dust on Filter Bags addresses a practical question in industrial dust collection: how to assess filter bags that retain dust after a cleaning cycle.
The article explains why operating evidence—including differential pressure and airflow recovery—matters more than a bag’s visual appearance alone. It also considers cleaning-system checks, process conditions and filter-media construction, with attention to the limits of PTFE membrane media.
At FiltEdge, sharing practical filtration knowledge is part of our ongoing dialogue with plant operators, equipment manufacturers and industry colleagues. We are pleased to contribute this perspective to the filtration community.
