Sterile venting

Sterile venting is mostly indispensable in Life Sciences and Medical settings.

The lab environment needs to be protected against microorganisms – but conversely, living microorganisms also need to be protected against contamination from the outside. It is also vital to ensure that no microorganisms can enter patients through the contact with medical devices. At the same time, openings in these devices to the outside need to be equipped with sterile air filters in order to protect the environment against potential contamination.

Our TRAKETCH® PET 0.2 VENT meets these requirements in several respects. First, this filter membrane provides a reliable barrier against even the smallest microorganisms, both in liquids and in air. Second, the VENT membrane keeps out liquids thanks to its super-hydrophobic (oleophobic) surface, that is PFOA-free, of course.

In addition, TRAKETCH® Membranes are not only biocompatible as per USP Class VI but are also stable against all sterilization methods, including gamma irradiation. Their extremely smooth surface also causes liquids to form droplets and run off the membrane, for example in the lid of cell culture containers, so that the membrane always stays dry, ensuring the necessary sterile air venting. This example of an application for cell cultures is just one of many.

Your contact person

Dr. Andreas Hogrebe
Business Development
Life Sciences

Application examples

Life Sciences

  • Cell culture
  • Fermentation
  • Transducer Protector
  • Diagnostics
  • Analytics


  • Urine bags
  • Stoma bags
  • Ophthalmology
  • IV-Systems
  • Nasal spray

Product solutions

Our product portfolio ranges from membranes on rolls to preassembled membrane components to the development of complex component groups in combination with plastic injection molds.

Venting & pressure
compensation elements

Self-adhesive, welded-on TRAKETCH® Membranes or those over-molded with plastic components as pressure compensation elements prevent damaging pressure variations, retain unwanted particles and ensure continuous venting – also sterile upon request.


Self-adhesive pressure compensation elements including TRAKETCH® membranes are already available in 6 standard and further customized sizes

Degassing Inserts

Pressure compensation membranes in our FLUXX® Degassing Inserts ensure continuous venting in for example various containers

Vented Caps

Our FLUXX® Vented Caps safely seal containers and at the same time ensure continuous venting using the integrated membranes

Tailor-made TRAKETCH® solutions as OEM-supplier