NutriBlasting with lots of leafy greens, asparagus, cayenne, broccoli, red bell pepper, goji berries, strawberries, blueberries, sunflower seeds, rice bran and the herbs below should help. Vitamin C and other antioxidants are particular important for those that smoke or have smoked. All veggies and fruits are protective.
1. exercise is beneficial because it gets the lungs working deeper
2. Sweat out the toxins, exercise and sauna
3. lots of water, stay hydrated
These herbs help clean
5. green tea (3 to 4 cups daily)
7. ginger root
11. Irish moss
13. licorice root
As with any new diet or herbs be sure to check in w/ your Dr. to make sure there is nothing contraindicated with current medications or conditions.
Here's another good link with good ideas: