Vent filter (waterproof/dustproof/ventilation/soundproof)

[Product overview]
The Vent Filter we are introducing here is a waterproof, dustproof, and breathable membrane made in Taiwan that is made of PTFE (polytetrafluoroethylene), a polymeric material. On the market, it is also called waterproof membrane, waterproof and breathable membrane, PTFE waterproof membrane, and PTFE waterproof and breathable membrane.

The PTFE membrane, which is a component of the vent filter, has a porous structure with micropores created by a special stretching process, and is breathable while blocking dust and water. By making it into a patch type with adhesive (basically, it is possible to combine adhesive with the outer periphery of one side of the vent filter), it can be attached to the housing surfaces of various products (such as plastic or metal surfaces with relatively smooth surfaces), and is useful, for example, for adjusting the internal pressure inside the housing caused by temperature differences and preventing condensation.

[Standard design and typical structural design]


[Customized design]
We can also customize the product to the extent possible, so please contact us. If you have any reference materials such as design drawings, we would appreciate it if you could provide them to us.

*One of the special cases is semiconductor wafer storage and transport carriers (FOUP and FOSB), etc.
and is used for ventilation and moisture permeation during wafer cleaning/drying processes.

The three cross-sectional diagrams (conceptual diagrams) below are used after discussion with individual customers.
This is an example of a composite membrane , in which a PTFE membrane is laminated with nonwoven fabric or mesh made of materials such as PP.
It is possible. We will customize it according to your request.


In addition, the table below lists examples of specific specifications (typical structures with relatively large ventilation volumes).
In addition to the above-mentioned applications to semiconductor wafer storage and transport carriers (FOUP and FOSB),
It is expected that this technology can also be expanded to include air filtration.

ePTFE Vent Filter (Lighting Series)

ePTFE Vent Filter (Lighting Series)