Capnography is the monitoring of carbon dioxide in the respiratory gases. It is increasingly being used by emergency medical personnel and hospitals as a tool to judge the condition of patients. For example, by measuring the end-tidal CO2 (ETCO2, the level of carbon dioxide released at the end of expiration) through a sealed mask, EMS technicians can receive an "early warning" of a patients worsening condition.
With accurate and instantaneous CO2 measurements required for Capnography, the COZIR high-speed wide range CO2 sensor seemed like the perfect solution to the problem. However, we wondered if the claimed high-speed of the sensor would be measurable in a real-world application? Therefore, we created an in-house test designed to show the true speed of the sensor.
The results were that the COZIR sensor is capable of measuring end-tidal CO2 levels in sub-second real-time. In fact, the sensor was so fast that it was capable of recording the CO2 levels of normal outdoor air as it was being inhaled into the lungs.