The respiratory mass spectrometer.
D055592:Biophysical Phenomena; D001703:Biophysics; D002245:Carbon Dioxide / Q000032:analysis; D008970:Molecular Weight; D009584:Nitrogen / Q000032:analysis; D010100:Oxygen / Q000032:analysis; D011312:Pressure; D012119:Respiration; D013057:Spectrum Analysis / Q000295:instrumentation*; D014783:Viscosity; D014867:Water
D014867:Water; D002245:Carbon Dioxide; D009584:Nitrogen; D010100:Oxygen