Lower floors of the building house offices while the laboratories are placed on the floors above. The layout was in part determined by the need for individual fume cupboards to carry toxic gas exhaust from the labs, for which the pipes to the rooftop treatment plants need to be as short as possible. The more dangerous labs are located on the upper floors so the travel of contaminated air in the pipeline is reduced to a minimum. At the top of the building, electrical and mechanical facilities take up the equivalent of two full floors in a 4.5-metre ceiling height with four levels of access routes.

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