Air Filtration and Venting Membranes


Hydrophobic, Oleophobic ePTFE and PES Membranes 

High air flow quickly eliminates air and equalizes pressure 

Absolute retention efficiency ensures microorganism & particle control for sterile air exchange. 

Repels alcohol, water, and oil.

A wide range of backing (support) materials support multiple sealing technologies.

  • Hydrophobic and Oleophobic PES Membrane Cobetter polyethersulfone (PES) membrane is made of a modified polyethersulfone polymer cast. The optimized asymmetric structure, enhanced hydrophilicity and high porosity provides extraordinary high flow rate and contaminants retention capacity. The product uniformity results in consistent filtration performance.