non-woven fabric 1).ISO/RoHS/SGS compliant 2).Nontoxic, ordoless 3)Small resistance,high effiiency 4).UL2 class ZF Needle Punched Filter Fabric could be grouped into coarse, medium and high efficient filter fabrics. We welcome your RFQ. Polyester Filter Fabrics: Models and Parameters: ModelRated air velocitym/sEfficiencyResistance PaDust holding capacity g/mWeight per sq.mThickness ...