The Edan Respironics CO2 /O2 Nasal Cannula (3469 ADU-00) allows concurrent supplemental oxygen delivery and expired alveolar breath sampling for non-intubated patients. Crafted from smooth clinical-grade plastisol material, this adult-sized breathing loop features a split-prong architecture that keeps gas flows strictly divided to prevent measurement dilution. Purpose-built for low-flow sidestream capnography networks, it feeds stable breath-by-breath waveforms back to external monitoring assemblies, protecting data stream clarity across long bedside procedures.