The dual-layer design offers up to double dust holding capacity compared to the single-layer design, as each layer serves a distinct purpose to optimize the overall retention of particles in the depth of the material.
In automotive engine air intake applications, the technology has proven to extend by over 50% the filter lifetime in the same configuration. It also offers the possibility to reduce both size and weight of the filter element in vehicles where these parameters are important.
Dual-layer filter materials are designed to comply with current and future engine air intake specifications, including fuel cells. The media can be customized with flame retardancy properties to increase safety in use without compromising performance. The technology is highly adaptable and can be extended to filter air and liquid in many other transportation and industrial applications.
“Leveraging our advanced manufacturing processes and know-how, Ahlstrom’s dual-layer filter media are setting new standards for filtration performance on the market,” says Tamara Quatrano, VP of R&D and Product Development for Ahlstrom’s Filtration division. “They can be adapted to different environments, and they not only purify and protect but also contribute to a more sustainable future.”
