0.22 UM 25 mm PVDF 0.22 UM 25 mm (polyvinylidene fluoride) Ko te momo taapiri he momo taapiri e whakamahi ana i te membrane hvdf. Ko te PVDF he polymer haangai e mohiotia ana mo tana whakaeke matū tino pai, te ahumoana nui, me te iti o te whakamahi i nga tono proprophilic.