Venting and Air Filtration Membranes

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

  • Oleophobic PTFE Membrane Oleophobic PTFE Membrane
  • Hydrophobic PTFE Membrane Cobetter Hydrophobic PTFE membrane is made from pure PTFE membrane bonded to a polypropylene support. The extreme chemical compatibility (pH 1-14) makes them very useful for the filtration of solvents and acids or other aggressive chemicals, for which other membrane filter types are unsuitable. Due to their hydrophobic characteristics, they must be pre-wet with a solvent such as ethanol or methanol before the filtration of aqueous solutions.