The first initiatives of breath analysis for determining the physiological state of humans originated during the time of Hippocrates (460-370 BC), when the ancient Greek physicians realized that some diseases could be diagnosed from the characteristic odor of patients' breath and knew that the human breath might provide sound information on health conditions
Сейчас существует огромное количество способов анализа выдыхаемого воздуха. Однако Existing technologies have several disadvantages:
- High-pressure gas-tank
- The presence of cryogenic temperatures and ultrahigh vacuum
- Laboratory laser systems
In addion, these devices are too expensive and difficult to manufacture. All these shortcomings limit their practical use and mass implementaon.