Choosing HEPA Filter Media: Why ePTFE Lamination Is Getting More Attention

If you work with cleanrooms in semiconductors, electronics, or PV manufacturing, filter selection is a familiar challenge. Efficiency has to meet spec, pressure drop matters, and the material has to work with your pleating line. ePTFE laminated filter media is one option worth understanding.

What ePTFE laminated filter media is？

ePTFE laminated filter media is made by thermally laminating an ePTFE microporous membrane onto imported non-woven fabric. According to UNM, the material offers a reliable filtration grade of H10-U17, with low wind resistance and low energy consumption. It is widely used for air filtration in production environments in semiconductors, electronics, panel display, PV, and other industries.

UNM offers different series with ULPA, HEPA filtration efficiency grades. Filters made from their laminated PTFE filter media can meet domestic and foreign standards.

Filtration grades from E10 to U17

The YKF series covers filtration grades from E10 to U17 in both 3-layer and 5-layer structures. Within the same grade, both standard and low-resistance versions are available. For example, at H13 grade, the standard version (YKF080313H) has an average pressure drop of 125-170 Pa, while the low-resistance version (YKF080313S) is 95-140 Pa.

Stated advantages

According to the product page, the material offers:

Ready for pleating — engineered to fit into existing pleating and assembly lines.

Thermal composite tech — firmly bonded PTFE membrane and PET non-woven, ensuring high peel strength during processing.

Low pressure drop — high air permeability saves energy and extends end-customers' filter life.

Stable and reliable — meets EN 1822-2019 standards, providing consistent quality for every roll.

Applications

HEPA & ULPA filters — panel filters, W-bank filters, and FFU cartridges.

Cleanroom filtration — ceiling terminal modules and clean booths.

Industrial dust removal — dust collection cartridges and filter bags.

Supply information

Place of origin: Suzhou, Jiangsu, CN

Brand: UNM

Model series: YKF

Certification: SGS, ROHS

Minimum order quantity: 450 m²

Packaging: carton

Delivery time: 7-15 days

Payment terms: T/T

Daily output: 60,000 m/24h

Final note

For HEPA/ULPA filters, cleanroom filtration, or industrial dust removal, ePTFE laminated filter media is one material to include in your comparison.