Howard Preece

As part of a major project to design and build a new bulk vaccine antigen plant, the authors were asked to investigate and implement a suitable fumigation system for clean room decontamination. The facility was designed to handle and contain live influenza virus, and has clean room suites designed to containment levels CL2 and CL3 according to the Approved Code Of Practice and Guidance (ACOP, Control of Substances Hazardous to Health 4th Edition). From the outset, specific areas within the facility were identified as requiring fumigation and this formed part of the initial design brief.