Known for its 2019 AHR Expo Innovation Award for Ventilation, Energy Wall is a Lancaster, Pennsylvania, developer and manufacturer focused on improving indoor air quality while reducing the energy cost of fresh-air ventilation. Its compact modular systems are designed for building owners and HVAC professionals working in space-constrained settings, including school retrofits and public facilities.
United CoolAirSince 1988, York-based United CoolAir has manufactured modular commercial HVAC equipment designed to fit through existing buildings rather than forcing costly renovations. Its all-indoor systems—98% of which fit through a 36-inch doorway—are built for difficult replacement projects, including historic buildings and sites with little outdoor space. The company also makes equipment for outdoor-air ventilation and temporary cooling applications.YORK, PA
Mestek Commercial Damper and Louver Group (MCDLG)From its Wyalusing, Pennsylvania base, Mestek Commercial Damper and Louver Group brings together several HVAC brands to manufacture air-control and ventilation products for construction projects. With more than 50 years in the HVAC industry, MCDLG makes its products in the United States and supports the field through AMCA-certified offerings, UL Life Safety products, and continuing-education courses. It is a division of Mestek Inc.WYALUSING, PA
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
Rensair LimitedFor more than two decades, Rensair Limited has developed commercial air-filtration systems and connected air-quality technology that clean indoor air while helping existing HVAC systems use less energy. Its ecosystem combines portable HEPA and UVC air purifiers with sensors and Rensair Cloud software, allowing buildings to improve air quality without replacing their ventilation infrastructure. Developed from technology created by Danish ventilation engineer Henrik Hendriksen, Rensair’s independently tested systems are used by organisations in more than 40 countries across five continents.BROOKLYN, NY