What is an "Oxygen" service in the Presbyterian Church?

I am a Catholic that has become disillusioned with my Church. I am interested in finding out more about the Presbyterian Services. Our Pres Church here offers 3 types of Services. Rite 1 Rite 2 and an Oxygen (Contempory Service) I have found some info about the Rite 1 and 2 Service but not the Oxygen. Can anyone give me some information about this Service? Thank You..