Dynamic Pass Box

A Dynamic Pass Box (DPB) is a self-contained air purification system used in cleanrooms and controlled environments to transfer materials between areas of different cleanliness levels. It prevents contamination by using HEPA/ULPA filtration and airflow systems to maintain a clean environment inside the pass box. Unlike Static Pass Boxes, which only act as transfer chambers, Dynamic Pass Boxes have interlocking doors, built-in air showers, and filtration systems that ensure materials are properly decontaminated before entering cleaner areas. These are commonly used in pharmaceutical manufacturing, biotechnology, hospitals, semiconductor production, and food processing industries to maintain sterile conditions and avoid cross-contamination.