The Edan Respironics CO2 Nasal/Oral Cannula (3470ADU-00) ensures precise carbon dioxide tracking for adult patients who alternate between mouth and nose breathing. Engineered to connect directly to the LoFlo Sidestream ETCO2 module, this specialized sampling cannula uses a dual-capture layout to pull breath samples from both paths simultaneously. It features an integrated dehumidification tube that extracts moisture before it reaches the diagnostic optics, protecting tracking accuracy and waveforms against water occlusion or sensor signaling downtime.