Which option is NOT a feature of Class 2 Partial Integration?

• A. CBRN Filter Units Fully Integrated
• B. Partial Integration of HVAC Filter Units or Alternate Protection Systems Allows Heating/Cooling
• C. The Contamination Control Area Can Be Permanent or Temporary
• D. Manual Dampers Control Outside Air and Exhaust

Answer: (A)

Class 2 Partial Integration aims to balance protection with operational flexibility by integrating key protection features without committing to a fully built-out CBRN filtration system. In this approach, HVAC filter units or alternate protection systems are partially integrated so you can still heat or cool the space while maintaining a protective layer. A Contamination Control Area can be designed as permanent or temporary, which reflects the need to adapt to different operations or project timelines. Manual dampers that control outside air and exhaust give operators hands-on control to manage airflows and maintain the desired pressure differentials. The idea of fully integrating CBRN filter units doesn’t fit this level of integration, because full integration implies a complete, rigid filtration setup that goes beyond what partial integration intends.