The Aervent membrane contributes to lean processes due to its non-fiber releasing properties. Aerex® - 0.2 um hydrophobic polytetrafluoroethylene (PTFE) membrane features broad chemical compatibility and low gravimetric extractables. Durapore® - 0.22 um hydrophobic membrane is manufactured to maximize retention and strength. Durapore hydrophobic membrane is ideally suited for applications such as product tank vents, where liquid bacterial retention is required.