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About 47 different variations of Pilkington's Optiwhite glass have been used in Helmut Jahn's Deutsche Post World Net headquarters in Bonn, Germany. Optiwhite glass, in a combination of thermally coated, sound-reduction and fire-resistant units, was used vertically on the north facade and mounted in a convex arrangement to promote better airflow and natural yearround ventilation on the south-side.

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