Hengyong PP melt-blown filter mediais made from special polypropylene resins by unique techniques withthe high temperature melt-blown non-woven technology. Inparticular, pleatable product has a higher tensile strength, higherbreak endurance and higher stiffness, which is critical in makingvarious pleat filter,e.g.V-bank ventilation filter, air filter forautomobile cabinets, filter for vacuum cleaners and varioushoushold filters. Hengyong’ polypropylene melt-blown filter mediacovers a wide range of efficiency grade, F6 to Y11 for ventilationfilters.