Containment level 3 (CAT 3) laboratories are used to handle hazardous pathogens.
The suite control system is usually based on PLC control due to the necessary interlocking and functionally required to give the required operation and performance.
The control system monitors the laboratory conditions and equipment status and provides audible and visual alarms. It is essential that the laboratory even under fault conditions the room pressure remains negative or neutral to the adjacent area to ensure containment.