Leakage, venting, and contamination are primary concerns for storage container manufacturers, especially when dealing with liquid packaging such as hazardous chemicals. POREX^® Cap Vents and Closure Vents provide consistent two-way vent rates and equalization of a container’s pressure during transit, even after repeated wetting and drying cycles. Both hydrophobic and oleophobic, vented closure caps are used in liquid packaging for consumer, industrial, automotive, agricultural, and medical markets. 

• Applications: Venting
• Materials: PTFE
• Downloads:
• porous PTFE materials and membranes ›
• ptfe materials overview ›

POREX^® Container Vents provide a balance of pressure between interior and ambient atmospheres for sealed containers that are not sealed by a cap without loss or contamination of the contents. The vents are applied directly to the container or container lid and provide two-way venting and de-gassing even after repeated wetting and drying cycles. Container vents offer superior resistance to chemicals, abrasion, dimensional changes, and mechanical damage during assembly and use. They are used in container packaging for consumer, industrial, automotive, agricultural and medical markets.

• Applications: Venting
• Materials: PTFE
• Downloads:
• porous PTFE materials and membranes ›
• ptfe materials overview ›

In packaging systems where crushable glass ampoules are used, POREX^® Glass Ampoule Filters provide optimal, balanced fluid or gas flow rates as well as excellent chemical and physical resistance. Our ampoule filters are designed for maximum structural integrity to support the external tube and to ensure total retention of glass shards within the broken ampoule. Assorted geometries accommodate varied device requirements for medical, pharmaceutical, consumer, and industrial markets. Products that incorporate POREX Glass Ampoule Filters include breath detectors, dental treatment applicators, topical drug delivery devices.

• Applications: Wicking Filtration / Separation
• Materials: PE/PET fiberPE

Used in the production of desiccant and oxygen scavenging devices in consumer, medical, pharmaceutical, and industrial markets, POREX^® Media Retention Vents offer optimal retention of organic and activated media, have minimal creep, and provide balanced filtration efficiency, airflow, and back pressure. 

• Applications: Venting Media Support
• Materials: PE

POREX^® Sterilization Vents serve a dual purpose: as a vent to allow pressure equalization during the sterilization process, and as a filter barrier to bacteria during subsequent storage. These reusable vents, comprised of polytetrafluoroethylene (PTFE), withstand repeated sterilization cycles as well as deliver substantial performance, convenience, and cost savings over traditional single-use paper and textile filter vent materials. The vent is also designed for single-use steam or ethylene oxide (EtO) sterilization packaging.

• Applications: Venting
• Materials: PEPTFE
• Downloads:
• porous PTFE materials and membranes ›
• ptfe materials overview ›