Positive Pressure Pass Box

A pass box works by using a positive pressure differential to prevent the entry of contaminants into the cleanroom environment. Materials or objects are placed into the pass box and then transferred through interlocked doors to the other side of the Dynamic Pass Box.The interlock is in mechanical form. When one door is opened, the other door cannot be opened. One door must be closed before the other door can be opened. The electronic interlock use integrated circuits, electromagnetic locks, control panels, and indicator light.