Since 1974, KE Fibertec AS has developed and produced textile-based ventilation systems in Denmark, replacing conventional steel ducting with lightweight fabric that distributes air softly and evenly. The Vejen-based company combines its own weaving mill with testing and development expertise, and tailors each system to the building rather than keeping standard products in stock. Its work includes Cradle to Cradle-approved ventilation materials and solutions designed for healthier, more sustainable indoor climates.
ISO 9001
certification
ISO 14001
certification
Cradle to Cradle
certification
Environmental Product Declaration (EPD)
certification
NTI GlobalSince 1983, privately owned NTI Global has grown from a small industrial sewing shop into a global supplier of converted textiles, making flexible industrial ducting and purpose-built textile products. Its work spans temporary HVAC, aviation and military ducting, as well as unusual custom projects developed from prototype through finished product. The company also designed the patent-pending VersaDOOR and VersaDOCK transitions, which route ducting, cables and hoses through doors or loading docks without cutting plywood.AMSTERDAM, NY
RensairBuilt around a Danish ventilation engineer’s lab-certified technology, Rensair develops commercial air-filtration and smart-ventilation systems that clean indoor air while helping existing HVAC systems use less energy. For more than two decades, the company has paired HEPA and UVC purification with connected sensors and software, avoiding disruptive HVAC replacement. Its solutions are used in populated indoor spaces across more than 40 countries, including healthcare, education, offices and transport.NEW YORK, NY
Tapis CorporationSince 1977, Tapis Corporation has developed high-performance fabrics for aircraft interiors, from its early flame-retardant carpets to materials used by more than 50 air carriers. The woman-owned company combines custom textile development with a Dallas testing and flame-treatment complex, including an FAA-validated lab certified to AS9100 and ISO 9001 standards. Its materials serve commercial aircraft, private jets and spacecraft, with sustainability built into the work through recycled and plant-based inputs, lighter constructions and longer product life.ARMONK, NY
ZitrónFounded in 1963 to supply Spain’s coal mines, Zitrón designs and manufactures bespoke ventilation systems for underground mines and transport infrastructure. From its Asturias headquarters, the company now serves projects in more than 80 countries across six continents and operates the world’s largest aerodynamic test bench for underground ventilation systems. Its management systems are certified to ISO 9001, ISO 14001 and ISO 45001.WEST VIRGINIA, WV