1. Choose the household oxygen generator with medical device registration certificate and place it in a clean and cool place. No open fire and inflammables are allowed around. Inform patients and their families not to smoke around during oxygen inhalation to prevent explosion and other accidents.

2. Doctors need to prescribe home oxygen intake prescription, including oxygen flow (i.e. the amount of oxygen required per minute), oxygen inhalation time and oxygen inhalation time. Do not change the oxygen flow or stop the oxygen without authorization.

3. Of course, oxygen should be inhaled at the time of onset, but not when oxygen therapy is also needed. This can reduce the frequency of the disease and reduce the severity of the disease.

4. Oxygen can be inhaled when sleeping at night. In addition, when reading newspapers, watching TV, reading books and other activities are not big, it can also be synchronized with oxygen inhalation, which can improve the compliance of oxygen inhalation, thus playing the prevention and control effect and improving the quality of life.

5. Air separation equipment such as oxygen generator needs regular maintenance and replacement. If the oxygen concentration is lower than 25%, there is no therapeutic value; if the oxygen concentration is higher than 60% and the duration is more than 2 hours, oxygen poisoning will occur.