Japan nasopharyngeal oxygen therapeutic instrument. In China, Japanese-style light oxygen nose is usually called Japanese-style nasopharyngeal oxygen therapeutic instrument. The Japanese Nasopharyngeal Oxygen Therapeutic Apparatus provides oxygen therapy by introducing pure oxygen into the nasal cavity and throat. It aims at improving respiratory system problems, increasing blood oxygen saturation and promoting health. This device usually consists of a nasal cannula and an oxygen generator. Insert the nasal cannula into the nostril and send pure oxygen into the nasal cavity and throat through the pipeline. The oxygen generator is responsible for producing pure oxygen supply.