The International Institute of All-Natural Refrigeration, iiar, is the world's leading advocate for the safe, reliable and efficient use of ammonia and other natural refrigerants. Our members share their collective knowledge and experience to produce consensus documents that address various aspects of the natural and industrial refrigeration industry. IIAR has broad industry representation including manufacturers, design engineers, contractors, end users, academics, scientists, and trainers. IIAR sets the standard for providing advocacy, education and the most up-to-date technical information to the ammonia and natural refrigeration community. We help professionals develop their skills and further their careers by promoting the common interests of our growing membership.