Secondary Engineering Controls – Part 2

Lesson Objectives

1. Explain the main difference between positive and negative pressure engineering controls
2. Explain the importance of “Make-up” air or the supply of air in a negative pressure environment
3. List the 4 qualities that surfaces in a cleanroom environment must have according to USP Chapter <797>
4. Discuss the minimum differential pressures positive pressured areas must maintain according to USP Chapter <797>
5. Identify the minimum number of ACPH an ISO 7 room must have according to USP Chapter <797>