I was not familiar with that term, but I am aware of sleep apnea and how that can lead to too-high levels of carbon dioxide. Like I said in a different comment, my current understanding is that both too-high and too-low are problems. In my case (and in other cases where people have anxiety-like shortness of breath) I think what’s going on is too-low carbon dioxide. But having a capnometer seems useful for correcting both too-low and too-high carbon dioxide.
I was not familiar with that term, but I am aware of sleep apnea and how that can lead to too-high levels of carbon dioxide. Like I said in a different comment, my current understanding is that both too-high and too-low are problems. In my case (and in other cases where people have anxiety-like shortness of breath) I think what’s going on is too-low carbon dioxide. But having a capnometer seems useful for correcting both too-low and too-high carbon dioxide.