Pass Box (passing box,air shower pass box) Features: 1. Materials of outside wall: coated plate or stainless steel 2. Ceiling and base plate: stainless steel 3. Electronic interlocking, Intercom included 4. Regarding the door at two sides of pass box, allows only one doors to be open at a time 5. Cabinet materials: coated plate, stainless steel (suitable for using in moist environment) 6. Ultraviolet sterilization, blower device and mutual electronic lock 7. Arc corner in design belongs to patent production 8. Size: 500*500; 600*600;800*800