Johnson Group LLC, formerly JHK Systems, has been in business for 33 years and serves industrial, commercial and institutional clients. Johnson Group provides studies, design, engineering, fabrication, construction, installation, maintenance, repair and modernization services forplant air and process air systems and manufactures proprietary air handling equipment. Typical projects include: * Paper machine hoods, air caps and pocket ventilation systems * Fourdrinier ceilings and wire pit exhaust systems * Mill, plant and factory ventilation, exhaust, heating, cooling and filtration systems * Air makeup, humidity control and motor cooling systems * Noise control, fiberglass hoods, tanks and scrubbers * Heat recovery systems, material handling systems * Surveys, air balance studies and design engineering * Material handling systems and equipment.