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MANN-FILTER, part of MANN+HUMMEL, has introduced a new generation of sustainable air and oil filters. These innovative products are developed using renewable energy, packaged in recycled materials, and treated with lignin—an eco-friendly, plant-based raw material.
Replacing Fossil Resin with Lignin
Traditional filters used phenolic resin derived from crude oil to ensure durability. MANN+HUMMEL has partially replaced this with lignin, a natural substance found in wood. This material, commonly a byproduct of paper and pulp manufacturing, brings similar stability to filter media while significantly reducing environmental impact.
Environmental Benefits
- Up to 5% reduction in CO₂ during filter impregnation.
- 27% less crude oil used in the impregnation process.
- Externally verified by ClimatePartner, a German certification body.
For example, the MANN-FILTER C 17 237 air filter alone saves approximately 3.93 tons of CO₂ and over 4,500 liters of crude oil annually, based on 2024 sales figures.
Availability & Compatibility
The new air filters are available for nearly 70 million cars and transporters across Europe, and oil filters are suitable for approximately 17.6 million vehicles. No changes in part numbers or stock handling are needed, making adoption seamless for distributors and customers alike.
Product Recognition & Quality
The new filters are identifiable by a green leaf pictogram on the packaging. While they have a slightly brownish tone due to the lignin content and a pleasant natural scent, they retain the original equipment quality MANN-FILTER is known for.
“Everything should be kept as simple as possible for our customers,” says Dr. Lars Spelter, lead engineer at MANN+HUMMEL. “Our lignin impregnation is a successful example of how CO₂ reduction can be implemented in mass production.”
Toward CO₂-Free Production
By 2025, MANN+HUMMEL will use only renewable electricity or certified green energy for filter production. By 2035, all process heat used will also be CO₂-neutral, pushing the company further toward climate-friendly manufacturing.