Absolutely agree with you! When it comes to PMing static state devices, the main goal is to ensure the device is functioning as intended. Just because it zeros doesn't necessarily mean all the other functions are working correctly.
We're using the same test kit the manufacturers recommend. For instance, if the test kit is set for a volume of 5LPM, the monitors consistently show readings of 6.5 LPM or above. In my experience with other manufacturers, readings have always matched the test kit precisely.
I'm getting the impression that the technical services provided by the manufacturers might not fully grasp the clinical aspects of CO.
