The best way to prevent emphysema is never to smoke cigarettes. If you do smoke, quit now. There are many excellent smoking cessation methods available today.
If you have emphysema but stop smoking before too much of your lungs has been damaged, the disease may progress more slowly.
Research continues to try to find answers to many questions about emphysema, including the best ways to prevent it.
For more information about how to stop smoking, go to Smoking: How To Stop.