A ventilation system is not required for the Plasmapp STERILINK sterilization system. Steam and oxygen are the only by-products from the STERLINK, both released through the side of the sterilizer as shown below; eco-friendly, and pretty cool.  No need for ventilation of harmful ETO gases, or tubes for discharge of wastewater from a typical steam sterilizer autoclave. The red circled area is where steam and oxygen are released.