The MIX2 and MIX3 safety gas mixer supplies a medical gas mixture (O²/N²O or O²/Air).It can be used in workrooms, operating theatres or even examination rooms.It separates gas flow reading and supplies pressure variations insensitivity.There is a possibility of very light flow mixture and has complete nitrous oxide cut off in case of oxygen supply default.For individual calibration, it has fine control flowmeters and in case of failure of oxygen supply, an audible alarm.It also has a built in push button for oxygen bypass and safety regulation even working with light flows and prevents the mixture to contain less than 20% of oxygen.