Capnograph of this millennium 

Kodali. Bhavani Shankar MD

A vision of an ideal capnograph

A side stream capnograph with the advantages of main stream capnograph seems to be the ideal one
Inspiratory and expiratory flow rates should be displayed above the CO2 waveforms to delineate segments and phases of capnogram
A capability of plotting a volume capnogram would enable determination of physiological deadspace
During steady state, carbon dioxide status is a function of ventilation, and oxygen status is function of inspiratory oxygen concentration. Therefore, the display should reflect this concept.
prevention of secretions being drawn into the capnographs would markedly improve the ICU application of capnographs