In clinical applications, this system can accurately distinguish the FeNO levels of asthma patients from those of healthy people, providing key data support for doctors to diagnose asthma, assess the severity of the disease and the therapeutic effect.

When phlegm is cleared, one's mindset changes. One wants to keep on living, no matter how hard it is.

Deep phlegm that was difficult to cough up in the past can now be smoothly expelled after using the expectoration machine. Breathing has become smoother, and symptoms such as shortness of breath and breathing difficulties have been effectively relieved.