High flow rates and throughputs due to a highly asymmetric pore structure Available in a wide range of absolute pore sizes; 0.04um to 1.2um All polypropylene parts, polypropylene support layer. With thermal welding to minimise extractable Manufactured in a clean room environment (class 10,000) The high asymmetrical pore structure offers a high dirt holding capacity, increasing the filtration performance than symmetrical membrane