Sterile filter * adopt 6 grades element which complement with America UPS plastic biology * element material is SPF who is good at hydrophobe, precision to be 0.01um.It can filter bacterium, virus & phagocyte. * o ring seal (silica rubber and fluorine rubber), ensuring to filter air 100%. * unique outer heat-resistant polypropylene.It can stand 140 celsius degree steam bacterium removal and will not reduce its precision if repeat sterilizing. * stainless steel of housing, polishing of internal, max.Working pressure to be 1.0mpa. * operation temperature less than 80 celsius degree .