The Lumen device works by measuring the concentration of CO2 in your breath to identify the type of metabolic fuel your body is burning for energy and the volume at which it's being burned. 

Extracting RQ in a single breath is the core innovation of Lumen. Over the past 4 years, our team of scientists and engineers have been working to develop and validate Lumen's science at top universities and hospitals around the world. 

Using patent-pending algorithms, CO2 sensors, flow meters, and barometric pressure and temperature sensing technology, Lumen has the ability to calculate a metric correlative to that of RQ at a resting state.

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