In GMP facility design, which feature helps minimize contamination by separating zones?

• A. Adequate separation of raw and finished product areas
• B. Controlled airflow between zones
• C. Cleanable surfaces throughout the facility
• D. Defined traffic patterns for movement

Answer: (A)

Separating zones by function creates a physical barrier that prevents cross-contamination between raw materials and finished products. When raw material handling is kept apart from where products are processed or packaged, the chances of residues, particulates, or microbes moving between areas are greatly reduced. This separation also supports the use of dedicated equipment, tools, and personnel flows, making it easier to clean and sanitize between zones. In practice, you might see separate rooms or wings, clear physical barriers, and restricted access to maintain the boundary. While features like controlled airflow, cleanable surfaces, and defined traffic patterns help support contamination control, the direct way to minimize contamination is by ensuring adequate separation between raw and finished product areas.