Air Venting Membranes

Cobetter hydrophobic ePTFE, with excellent sealing capability and optimized water & bacterial resistance, is therefore used in a wide range of medical air venting applications, involving infusion therapy, transducer protector, drug delivery, aqueous collection, and drug preservation. The constant water/alcohol/oil repelled ability of the porous ePTFE membrane promises long-time gas venting function, and the typical pore size range ensures no microorganism & particle entrance during gas venting. A wide range of backing (support) materials support multiple sealing technologies. 

For compatibility with lipids or alcohol-based medicine (chemotherapeutics) delivery venting, oleophobic version ePTFE membrane is recommended. To learn more about oleophobic membrane, please refer to Oleophobic PTFE Membrane.

Certified Biological Safety (ISO 10993/USP ClassVI)

Remarkable WEP & Longer Life

Lot-to-lot Consistency

Compatible with Different Sealing Methods

Ultrasonic, Heat, Mechanical, RF Welding

Sterilization Compatibility

Autoclave, Ethylene Oxide, Gamma Irradiation

Available Pore Sizes (μm)

 0.02, 0.1, 0.2, 0.45, 1.0, 2.0

Typical Applications

- IV Filter / IV Spike
- Transducer Protector
- Dispensing Pin
- Detaining Needle

- CSTD (Closed System Transfer Device)

- Urine Bag

- Dry Powder Inhaler

Membrane Formats

Roll,   Sheet,   Disc,   Customization