Setting new standards in real-world filtration performance and long-term stability

Weinheim, March 12, 2026. Freudenberg Filtration Technologies, a global leader in filtration technology, today announced the launch of micronAir neo, a next-generation cabin air filter developed specifically for original equipment (OE) automotive manufacturers. Designed to deliver unmatched long-term stability, real-world filtration efficiency, and validated performance under real-life conditions, micronAir neo marks a great step forward in passenger health protection and vehicle air quality.

The brand-new micronAir neo cabin air filter product line addresses long-standing challenges in cabin air filtration, particularly the gap between strong lab results and weak real-world performance that conventional solutions have struggled to overcome. With the advanced Freudenberg neo fiber, melt-blown technology, Freudenberg Filtration Technologies introduces an ideal deep fiber structure with a diverse range of fiber diameters specifically engineered to meet the demands of real-world air pollution.

The innovative structure ensures that ambient particles of varying sizes, shapes, densities, and compositions are captured efficiently throughout the entire depth of the cabin air filter. In comparison, traditional staple-fiber elecret filters often show significant performance drops after initial use, losing their ability to capture fine particles effectively. HEPA filters, while highly efficient in laboratory conditions, require large installation spaces and are expensive, making them impractical for standard HVAC systems. Nano-fiber-based filters, although promising in lab tests, frequently encounter limitations in real-world conditions, including dense dust layering and reduced mechanical stability.

Tested for long-time reliability
For micronAir neo, Freudenberg Filtration Technologies’ engineers conducted extensive testing under realistic conditions, including exposure to ambient air over extended periods, to ensure that micronAir neo maintains high filtration efficiency over its full lifetime. Even after prolonged use, the filter demonstrates moderate pressure drop, superior dust-holding capacity, and consistent performance, addressing a critical gap in the market for reliable, long-term cabin air protection. “micronAir neo is the result of our commitment to understanding what customers truly need in real-world environments,” said Regina Winter, Project and Global Portfolio Manager at Freudenberg. “By combining a heterogeneous fiber structure with rigorous validation, we created a cabin air filter that performs not just in the lab, but in the vehicles people use every day.”

Designed for real-world efficiency
What sets micronAir neo apart is its focus on real-world performance rather than theoretical maximum performance. While some filters achieve impressive results in controlled laboratory conditions, they often fail when exposed to the complexity of ambient air. micronAir neo was developed to address this exact challenge, capturing fine particles down to PM 0.1 and preventing dense dust build-up, which can compromise airflow and overall filtration performance. “We tested micronAir neo extensively, from industrial test rigs to on-site ambient air aging simulations,” added Marie Fickartz, Project Manager. “The results confirm that micronAir neo delivers reliable, high-quality air wherever passengers are on the move in their vehicles.”

Sustainability and health at the core
Beyond performance, micronAir neo also reflects Freudenberg Filtration Technologies’ commitment to sustainability and human health. The filter can be made from up to 60% recycled or renewable materials by weight, contains no intentionally added PFAS, additives, biocides, allergens, and perfumes, and is produced at our site that operates on 100% green electricity. By combining superior filtration with environmentally responsible design, micronAir neo demonstrates that high-performance cabin air filters can also contribute to reducing the environmental footprint of automotive manufacturing.

micronAir neo is now available for OE manufacturers, with Freudenberg experts providing comprehensive design and development support, including customized testing. With its combination of long-term stability, real-world efficiency, and sustainable design, micronAir neo sets a new benchmark for automotive cabin air filtration.