吸氧的注意事项：

Precautions for oxygen inhalation

1、慢性阻塞性肺疾病（COPD）（慢性气管炎、肺气肿）在呼吸衰竭时，应该低浓度吸氧。（<35%）

1. In chronic obstructive pulmonary disease (COPD) (chronic tracheitis, emphysema), low concentration of oxygen should be used in respiratory failure. (<35%)
2、吸氧应该用医用氧气，不可使用工业氧气。
2. Medical oxygen shall be used for oxygen inhalation, and industrial oxygen shall not be used.
3、鼻塞和鼻导管吸氧时，高流量吸氧对局部鼻黏膜有刺激，氧流量不能大于7L/min。

3. When oxygen is inhaled by nasal obstruction and nasal duct, high flow of oxygen can stimulate local nasal mucosa, and the oxygen flow cannot be greater than 7L / min.

专家说，在家里吸氧治疗时应注意4点：
Experts say four points should be paid attention to when taking oxygen therapy at home:
1.室内严禁火源，以防火灾。
1. Fire sources are strictly prohibited indoors to prevent fire disaster.
2.氧气流须经过湿化瓶，以减轻对呼吸道黏膜的刺激。
2. The oxygen flow must pass through the humidification bottle to reduce the irritation to the respiratory mucosa.
3.长期氧疗，给氧流量应控制在2升/分钟~4升/分钟，每天吸氧不得超过1小时，以防产生氧自由基危害健康。
3. For long-term oxygen therapy, the oxygen flow rate should be controlled between 2 L / min and 4 L / min, and the oxygen intake per day should not exceed 1 hour, so as to prevent the generation of oxygen free radicals from endangering health.
4.鼻导管使用前应先检查是否通畅，每天更换两次，煮沸消毒10分钟备用，最好使用一次性吸氧管。
4. Before using the nasal catheter, check whether it is unobstructed, replace it twice a day, boil it and disinfect it for 10 minutes for standby, and it is better to use the disposable oxygen tube.