A Dynamic and Static Pass Box is a cubicle box consisting of interlocked doors established on both sides. This works like an airlock or laminar air flow unit and helps protect the controlled environment from getting polluted during the material transfer that takes place inside. This is mainly used to transfer materials between two chambers of equal cleanliness levels. It does not require much personnel movement since material transfer is actualized from uncontrolled to controlled environments. Dynamic pass boxes are like cascade, or sink type that is similar to airlocks. You can contact SR Air System for the best dynamic & static pass boxes.