The Runkai Medical Nitric Oxide Analysis System is non-invasive and convenient for detection. It can be detected only by the patient's exhaled breath, with simple and convenient operation and high patient acceptance. It is helpful for inflammation classification and drug guidance of airway diseases such as asthma and chronic obstructive pulmonary disease. The following picture shows the training of Runkai Medical operators on the installation of nitric oxide analysis system in a tertiary hospital in Sichuan.