Lydall, Inc. engages in the design and manufacture of specialty engineered filtration media, industrial thermal insulating solutions, automotive thermal and acoustical barriers for filtration, separation, thermal, and acoustical applications. It operates through the following segments: Performance Materials; Technical Nonwovens; and Thermal and Acoustical Solutions. The Performance Materials segment includes filtration media solutions primarily for air, fluid power, and industrial applications; thermal insulation solutions for building products, appliances, and energy and industrial markets; and air and liquid life science applications. The Technical Nonwovens segment produces needle punch nonwoven solutions for myriad industries and applications. The Thermal and Acoustical Solutions offers engineered products tailored for the transportation sector. The company was founded in 1869 and is headquartered in Manchester, CT.