Ahlstrom ECO™

Ahlstrom ECO™ is a lignin-containing technology reducing fossil-based resin content

Filter media with high filtration performance and full process compatibility

Ahlstrom ECO™ contributes to lower formaldehyde emissions during curing

Ahlstrom ECO™: A new generation of lignin-containing materials for transportation filtration

Transportation filtration world is facing certain sustainability challenges and Ahlstrom is currently working to address them by:

Ambitious emissions reduction program at all our plants (CO2, water, waste etc)
Improvement of end customers footprint (enhanced performances, support transition to electrification)
Adoption of more sustainable resources* (PFAS ban, formaldehyde reduction, fibers and binders)

Ahlstrom ECO™ is a designed to support the transition toward more sustainable solutions in the transportation and industrial markets, offering filter manufacturers a reliable alternative without compromise.

Developed by Ahlstrom, this filter media integrates lignin, a renewable raw material from the pulp industry, replacing a minimum of 30% of traditional fossil-based phenolic resin. This approach reduces reliance on non-renewable materials while maintaining strong mechanical properties and durability, even in demanding environments.

Ahlstrom ECO™ is compatible with existing pleating and filter manufacturing processes and can be applied across a wide range of air and liquid filtration applications, particularly in transportation.

The lignin-based impregnation technology also contributes to significantly lower formaldehyde emissions, reduced by 40–70%** during the curing process.

Ahlstrom ECO™ Sell Sheet

Ahlstrom ECO™ has been selected as the winner of Product of the Year-award by American Filtration Society (AFS). Click here to read more on the award.

Lignin is one of the main component of wood and the second most important bio-polymer on Earth after cellulose.

Lignin is a renewable side-product of wood pulp production which has been valorized at an industrial scale only recently.

*Engine air/oil/fuel filter media are typically made by wet-laid process combining cellulose and often polyester fibers, with a phenolic solvent-base saturation.

**Based on internal testing using the VDA 275 method, compared to a standard phenolic reference formulation. Actual results may vary depending on product grade, processing and end-use conditions.