Aynuo’s expanded polytetrafluoroethylene (ePTFE) membrane is the core technology behind our different vents products, protecting devices and enclosures from temperature and pressure fluctuations, moisture and harmful contaminants. Our wide range of Waterproof & Breathable options increases the effectiveness and reliability of products and can help to extend products’ lifetime.

Aynuo’s ePTFE membrane has a unique microporous structure. It is comprised of small randomly connected fibrils that render an effective pore size much smaller than can be seen by the naked eye. The ePTFE membranes are naturally hydrophobic and can be used as permeable water barriers for venting applications in a lot of fields. Moreover, Aynuo’s unique oleophobic treatment process can also make ePTFE membranes repel organic solvents.

Aynuo’s experts will provide the most effective venting solution for your needs by helping you select the appropriate solutions. Our Waterproof & Breathable group is a leading worldwide developer and manufacturer of microporous ePTFE membranes and laminates. 

The adhesive vents are the perfect fit for your small, densely-configured electronics. They install easily, bond securely, provide lasting hydrophobic and oleophobic protection, and have excellent roll-off to maintain airflow. Multiple sizes and configurations can fit for your applications.

Changing harsh environmental conditions cause seals to fail and allow contaminants to damage automotive lamps. 

Aynuo Plug-in Vent Cap could effectively equalize pressure and reduce condensation in lamps’ sealed enclosures, while keeping out solid and liquid contaminants. It can increase the safety, reliability and service life of automotive lamps.

Aynuo Screw-in Vent Valve provide protection from particles, water, oils, and liquids while allowing pressure and temperature equalization. This durable, threaded vent is easily integrated into existing equipment. 

Screw-in Vents can be used in a variety of automotive applications such as sensors, ECUs, and lighting as well as protective cases, lighting enclosures, appliances and general enclosures where protective venting is required.

Aynuo Snap-in Vent Valve provide protection from dust, dirt, water, oils, and liquids while allowing pressure equalization. 

The durable Vent Valve can integrate easily and reliably to protect sensitive control units, sensors, actuators, motors and hybrid/electric components. 

Our engineering team can help you identify the optimal venting solution for your application.

Aynuo’s Vent Liners are the easiest way to transform an existing non-vented package into a well-vented package – without modifying your existing cap or closure. 

Aynuo offers two styles of Liners: PE Foam Vent Liner and Aluminum Pulp Induction Vent Liner.

All liners are available in single- and multi-up roll goods, as well as in various widths. Die-cut parts can also be offered. 

Aynuo’s Vent Plugs can be easily installed via press-fit or snap-fit. Available for container sizes from 0.2 to 1,500 liters, they can be integrated into the closures of industrial drums, jerry cans and IBCs as well as consumer containers. 

Vent Plugs are designed to withstand harsh chemicals and rugged use. They consistently demonstrate compliance with the UN Orange Book test standards, including the stacking test and drop test.

Aynuo Acoustic Vents facilitate transmission of sound with superior acoustics performance, deeper immersion protection and enhanced contamination resistance. 

Aynuo can customize the membrane with the desired functionality to repel water, sweat, cleaning solutions and low surface tension liquids like detergent and oils without sacrificing acoustic performance. 

Our products are subjected to rigorous Water Entry Pressure testing for deeper immersion protection. Smartphones can be protected from water as deep as 5 meters for as long as 30 minutes and wearables as deep as 50 meters for 10 minutes which is superior to the competition and decreases the number of defective products produced.