Johns Manville Sales GmbH Hall 7 / L3

Johns Manville Highlights the Sweet Spot of Evalith® Micro Fiberglass Filtration Media at FILTECH 2026

Denver, CO / Cologne, Germany – June 2026 – As air quality standards continue to intensify across industrial, commercial, and critical environments, the focus is expanding beyond efficiency metrics alone. Today, manufacturers and system operators are increasingly evaluating how filtration materials perform over time and how responsibly they are engineered from a health and regulatory perspective.

In response, Johns Manville (JM) has launched its “Sweet Spot of Micro Fiberglass” campaign, highlighting the critical balance between proven biosoluble glass chemistry and stable, high‑efficiency filtration performance in air filtration applications using micro fiberglass media.

The campaign emphasizes that micro fiberglass remains essential for high‑efficiency mechanical filtration, particularly where consistent performance, low pressure drop, and long service life are required. At the same time, very fine fibers used for such applications fall under regulatory definitions that require manufacturers to clearly demonstrate how their materials behave over time.

Frameworks such as the EU’s CLP Regulation define recognized scientific test methods to assess whether specific chemistries are bio persistent or not. Johns Manville has applied this science‑based approach for more than 30 years, with biosoluble glass chemistries verified through recognized testing and supported by decades of production experience.

“Micro fiberglass is chosen because it delivers what demanding filtration systems need: high mechanical efficiency that remains stable throughout the entire filter lifetime,” said Christian Hassmann, Business Director, Filtration & Separation at Johns Manville. “At the same time, material safety must be addressed by design and supported by clear scientific evidence. With our biosoluble micro fiberglass media, we combine verified chemistry with reliable performance, so customers don’t have to compromise.”

This balance, where health protection and filtration performance come together, defines what JM calls the Sweet Spot of Micro Fiberglass. It reflects continuous improvement in fiber design, binder systems, backing veils, and process control to ensure consistent behavior in air filtration applications, including HVAC systems, cleanrooms, and data centers.

Building on the technology of biosoluble micro fiberglass, JM’s new Evalith® filter tube media provides high-efficiency filtration through a seamless, uniform glass structure, ensuring durability and eliminating leakage paths. Designed for demanding environments, this product delivers exceptional contaminant removal, durability, and consistent performance. Serving sectors like oil and gas, sewage and water treatment, cogeneration facilities, and air filtration, we provide tailored solutions that optimize filtration efficiency and operational reliability. The solution supports sustainability goals through approximately 25% recycled glass content, delivering a reliable and environmentally responsible filtration option.

About Johns Manville

Johns Manville (JM), a Berkshire Hathaway company (NYSE: BRK.A, BRK.B), is a leading manufacturer and marketer of premium-quality products for building insulation, mechanical insulation, industrial insulation, commercial roofing and roof insulation, as well as fibers and nonwovens for commercial, industrial and residential applications. In business since 1858, the Denver-based company has annual sales of over $4 billion and holds leadership positions in all of its key markets. JM employs nearly 8,000 people and operates in 43 North American and European locations. Additional information can be found at www.jm.com.