Disposable nasal oxygen tube, it is used by unpacking the small package, if there is a leak in the package can not be used, and then the nasal oxygen tube horn connector connected to the oxygen supply system equipped with wetting bottle interface. Hang the head ring or earring on the patient’s head or ears, put the nasal plug into the patient’s nostrils, and then adjust the oxygen output of the oxygen supply wetting bottle, and by adjusting the amount of oxygen large and small the patient can inhale the oxygen from the oxygen inhalation tube. The overall operation is relatively simple, but be sure to pay attention to, if the packaging is damaged do not use. The nasal oxygen tube is valid for 2 years after sterilization by ethylene oxide, and should not be used after the expiration date. The nasal oxygen tube should be put in a dry place when not in use.