With the presence of a specially made venturi type gas socket connected to the compressed air system of the hospital, suction starts with the relevant jack set and the anesthesia gas is discharged out of the room through the discharge line. Medical gas sockets are designed and manufactured according to EN ISO 7396-1: 2007, EN ISO 7396-2: 2007, EN ISO 9170-1: 2008, EN ISO 9170-2: 2008 standards.