Emphysema treatment with an oxygen absorber, oxygen pressure flow needs to be adjusted to low-flow oxygen supply, the general flow is from the beginning of low-flow oxygen, according to the patient’s degree of hypoxia slowly increase, if mild hypoxia, oxygen time is not clearly defined, if chronic lung disease long-term hypoxia, the time of the supply of oxygen is about 10-15 hours / day. In the process of the patient’s oxygen intake, it is also necessary to pay attention to humidification and observe the effect of oxygen therapy. Patients with emphysema may have symptoms such as shortness of breath, chest tightness, asthma, etc. By inhaling low concentration of oxygen, it can improve the symptoms of hypoxia in the organism and reduce the symptoms of chest tightness and dyspnea. If the patient’s symptoms such as dyspnea and asthma improve significantly, and the heart rate is basically normal, the effect of oxygen inhalation is good. However, if the patient’s symptoms do not improve with oxygen, the oxygen concentration and flow rate need to be adjusted. If there is no relief, but worsening, it is recommended to consult a doctor in time, under the guidance of specialists to treat the cause, but long-term high concentration of oxygen may lead to an abnormal response, or even inhibit respiration, leading to worsening of the patient’s emphysema. It is recommended that patients seek timely medical attention to assess their condition and improve their symptoms with oxygen therapy under the guidance of a physician.