X-halo uses precisely calibrated sensors to measure the temperature of the air in your lungs - also known as Exhaled Breath Temperature (EBT).
X-halo identifies airway inflammation by detecting increases in your EBT versus your normal levels
Since "normal" EBT differs for each individual, X-halo uses the initial setup process to understand your personal normal, or baseline, EBT level.
Once X-halo has established your baseline EBT level all you need to do is use it once a day, before breakfast, to track your AI levels.
