Krueger-HVAC is a manufacturer of commercial and industrial air distribution solutions, offering a wide range of products including diffusers, grilles, air nozzles, terminal units, fan coils, blower coils, chilled beams, and displacement ventilation products. They provide software tools like K-Select Selection and Comfort Tool for product selection. Krueger-HVAC also offers engineering capabilities, green products, and resources such as white papers and case studies. Their focus is on providing efficient and next-generation solutions for various building applications like commercial, hospital, school, hotel, and industrial settings.