Features: 1) Collect 1 to 5 micron particles 2) Large airflow 3) Low resistance 4) Large dust holding capacity 5) Long service life 6) Repeated washing 7) Stable construction 8) Media: polyester fiber 9) Frame: aluminum and galvanized steel plate 10) Sealant: polyurethane 11) OEM orders with customized designs and specifications welcomed 12) Application: a) Main filters for commercial and industrial AHU b) Pre-filters for clean room MAU