https://www.vetnurse.co.uk/f/clinical-discussions/21385/inspired-co2 hi i was just wondering if anyone has experience with using capnographs with a humphrey ade system? we seem to always have a low level (around 3 or 4) or inspired co2. the flow rates are as reccommended and soda lime not exhausted, checked non ofen-USTelligent Community 10