Is emphysema curable?

No... Empysema, a form of COPD typically due to smoking, is not curable. It is a slowly progressive disease. The best way to prevent this is to avoid smoking and/or to quit asap if you already smoke.
No, unfortunately. Emphysema is the destruction of lung tissue. Once lung is destroyed, it can't come back.
Emphysema. Emphysema is a destruction of lung tissue with resultant reduction in oxygen and carbon dioxide exchange and respiratory effort. It's usually due to smoking but could be due to other medial conditions. It's treatable but not curable.
No. Emphysema is, by definition, a disease characterized by irreversible damage to the lungs. However, there are all degrees of emphysema and the goal of therapy is to ameliorate symptoms, treat complications, and prevent or slow progression.