Dynamic Pass Box equipment are made of powder coated high grades stainless steel (304 316 316 L) with international quality standard components including mechanically or electrically interlocked doors and UV light. These dynamic pass box equipment are equipped with suction filter made of stainless steel with 95% down to 5µ efficiency (EU-4rating) and supply filter made of aluminum with 99.999% down to 0.001 µ (EU-14 Rating.) An interlock guard system controls the inlet and the outlet of PASS BOX not be opened at the same time, in order to prevent the cross contamination.