HVAC System: Supply AHU which had previously been qualified remained basically unchanged. This project was carried out by JBP (Jacobs, Bond & Pascoe) and included modifications to the ductwork serving various rooms to improve airflow patterns within the rooms. The performance of the HVAC system serving production rooms and the associated UDAF devices were checked and recorded prior to any modification work being carried out. These tests were carried out by jacobs Bond Pascoe Ltd. .