问:我患肺心病有3年了,常常胸闷、气短,长期需要住院吸氧治疗,比较麻烦。因此我打算自己买氧气在家吸氧,请问这种办法可行吗?需要注意哪些问题?答:您买氧气时最好选择混有一定浓度二氧化碳气体的氧气(一般为二氧化碳占5%的混合氧,习惯上称为九五氧)。因为一定浓度的二氧化碳除 Q: I have pulmonary heart disease for 3 years, often chest tightness, shortness of breath, long-term need for hospital oxygen therapy, more trouble. So I intend to buy oxygen at home oxygen, may I ask this approach is feasible? Need to pay attention to what issues? A: When you buy oxygen is best to choose mixed with a certain concentration of carbon dioxide gas oxygen (typically 5% carbon dioxide mixed oxygen, Habitually known as the nine five oxygen). Because of a certain concentration of carbon dioxide addition