... supply all kinds of filter ( pleated, spun, wound, yarn, BB type, carbon), and PP yarn. We tailor made as per your ... contaminant catching capacity increased and the lifetime is prolonged. PP Series SafetyF.D.A compliantChemical resistance: 100% polypropylene for ... Operation Pressure Drop21=5.0Kg/cm2MATERIALS100% polypropylene, melt-blown thermal bond fiber.RETENTION RATINGS (μ m)nominal 1, 5, 10, 20 ...