Dynamic pass box, considers the necessity and pass box manufacture a dynamic pass box that aids in the prevention of pollutants in a cleanroom or other areas. A cubicle box fitted between two classified areas or material passing with HEPA filtered air can be specified as a dynamic pass box. There are interlocked doors on both sides of the dynamic box that keep the air from being polluted. When the button is pressed, the door opens and closes with the aid of the magnetic lock. A UV light in the dynamic pass box controls the closing and opening of doors. When the UV light is turned on, the door is closed; when it is turned off, the door is open.

A dynamic pass box is a cubicle box that has interconnected doors located on both sides. This prevents contamination of the monitored environment when the material is being transferred within. Krew Instrument, a leading pass box manufacturer, provides both static and dynamic pass boxes that are used in the pharmaceutical industry to move materials and retain class between areas.

A dynamic pass box functions similarly to a laminar flow unit. Clean air enters this pass box and also blocks the contaminants to enter. It has interlocked doors on both sides, which avoids contamination of the system area. The pass box machine has a re-circulated filtration system and is designed to GMP specifications.