Fire fighting aspect of high level bio-safety laboratories in HVAC design

States the design code and design method of the foreign high level bio-safety laboratory, and discusses the fire protection measures in China with an application example. Presents a series of measures feasible both in theory and practice, including the closed smoke control measures, replacing the fire damper with the biological airtight valve which is recorded and approved by the fire protection authority, air sampling early warning system for smoke, equipping CO concentration detection in the core laboratory room, replacing the mechanical smoke extraction system with the audible and visual alarm system, applying A-class thermal insulation material to the air handling units and ducts. Solves the fire protection and extraction problems of the high tightness high level bio-safety laboratory.