Monitoring of nonintubated patients for end-tidal CO2 and other exhaled gases can be limited. One reason is that supplemental oxygen, delivered by mask or cannula, tends to dilute end-tidal gases and distort waveforms. But Salter s special capnography sampling cannulas permit an undiluted sample, even with simultaneous insufflation of oxygen or gaseous analgesia. This results in a waveform similar to that obtained with an intubated patient.Features & Benefits: