The former Managing Director of Frigoscandia AB, Per-Oskar Persson of Helsingborg, Sweden, died on August 26, 2008 at the age of 84. He was an Honorary Member of the IIR and former President of Commission D1, 1971-1979, and Head of Section D (1979-1987). He was a pioneer in a wide range of refrigeration technologies used in food freezing, cold storage, tunnel construction and medicine. Read Prof. Eric Granryd's tribute to Per Oskar Persson and his outstanding achievements: