The Nikkiso Cosmodyne TGNO is a cryogenic oxygen and nitrogen generator designed to produce three gaseous product streams: medium and high-pressure nitrogen gas and oxygen gas, according to Nikkiso. The high-pressure nitrogen comes directly off the nitrogen column at approximately 8.5 bar(g). The medium pressure nitrogen stream comes from the oxygen column overhead and is boosted by a waste stream expander to approximately 2.3 bar(g). The gaseous oxygen comes directly off the oxygen column which runs at an elevated pressure of 2.3 bar(g). All this is accomplished at a low specific power of 0.27 KW/Nm3."