Filtration & Separation

Clean breathing and clean liquids everywhere! As one of the world's largest manufacturers of micro fiberglass air filtration media and polyester spunbond nonwoven products with world-class expertise and technology, we offer a wide range of synthetic nonwoven, multi-layer composites and micro fiberglass filtration media that enable our customers to provide solutions for improved air and liquid quality. We design, manufacture, and sell Evalith? branded filtration products for applications such as cabin air, air pollution control (APC), heating, ventilation and air conditioning (HVAC), coolant oil, water, food and beverage, pharmaceutical, and mist elimination.

Your choice for durable lead acid batteries! Our chemical resistant Evalith? fiberglass nonwoven is optimized for automated lead pasting systems. Durability, resistance to wear and chemical breakdown make these carriers the first choice for demanding lead acid battery applications. Our Evalith? polyester nonwoven products for stationary and traction battery gauntlets offer high stiffness and a uniform porosity, as well as high durability and excellent corrosion resistance.


Christian Hassmann
Commercial Director

"Johns Manville has in-depth knowledge of the filtration and separation markets and combines that?expertise with proprietary science, based at five world-class testing and?research facilities to design, manufacture and deliver custom engineered nonwoven for the most demanding requirements."

Discover a selection of our filtration & separation solutions


Air Filtration


Liquid Filtration



Deep Cycle Battery_1400x748

Battery Products?


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