When it comes to fitness, your tolerance to CO2 can be improved and you can thereby increase your capacity. One way to improve your tolerance is with a training mask.
But where does the sensor come in, you wonder? Today, CO2 is measured in VO2 tests, a rather complicated test where you have to use fixed equipment in a “lab situation”. We see other ways to do this: in conjunction with training masks and a small mobile sensor that will follow you during your exercise.