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Kosonen works as Associate Professor of HVAC technology at the Department of Mechanical Engineering. He studies the energy efficiency of buildings, intelligent energy systems and the indoor air environment. He has a wide experience in the business world and international cooperation. He has worked for Halton Oy for several years with the main task of product and solution development and international technology cooperation with industry and university.

REHVA is The Federation of European Heating, Ventilation and Air Conditioning associations founded in 1963. It represents over 120,000 HVAC designers, building services engineers, technicians and experts across 26 European Countries.

The association provides its members a strong platform for international professional networking, and knowledge exchange pursuing the vision of improving health, comfort, safety and energy efficiency in all buildings and communities. REHVA contributes to technical and professional development, follows EU policy developments and represents the interest of its members at EU level and globally. It has a significant impact on national and international strategic planning and research initiatives, as well as on the associated educational and training programmes.