The second part of the Workshop focused on the Performance Qualification studies that are needed to properly validate the gaseous decontamination method in sterility test isolator systems. Practical examples, a discussion of acceptance criteria, and the demonstration of test methods were included. Key learning objectives included determining a D-value for your BIs, developing and qualifying decontamination cycles, isolator aeration, sterilant ingress methods, and creating a meaningful process simulation (no false negative) study.