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PES phobic membrane

PES membranes for air & gas filtration are available in various pore sizes from 0.2 µm up to 5 µm. They show excellent venting and liquid retention characteristics. Their exceptional compatibility to gamma radiation and high tensile strength make them fit to all your devices.

Item no.:  15C77


These hydrophobic and oleophobic PES membranes are treated to make their surfaces perfectly liquid repelling. Even under high humidity or high moisture, outstanding air permeability is guaranteed to assure rapid venting at low differential pressure.

Safety and reliability in sterile venting:

  • wide choice of pore sizes from 0.2 µm up to 5 µm
  • excellent air flow rates
  • superior hydrophobicity or oleophobicity
  • reliable retention of particles, aerosols and microorganisms
  • compatible with gamma irradiation, EtO and autoclaving
  • high thermal and mechanical resistance
  • easy sealable


  • Market


  • Length
    on request
  • Membrane Thickness
    135 µm
  • Width
    on request

General Specifications

  • Flow Rate
    1.4 Air [L/(m²*sec) @ 200Pa
  • Water Intrusion
    2.8 Bar

Materials of Construction

  • Membrane
  • Membrane Material
    Polyethersulfone (PES)

Physicochemical Information

  • Capillary Speed
  • Pore Size
    0.2 µm
  • Wettability

Product Information

  • Primary Product Type
    OEM Membranes