Getting cigarette tar out of the lungs is a process that does happen naturally but how long this actually takes is a matter of debate amongst many people.
The reason for this perhaps is that it depend on how long you have smoked for, how heavy a smoker you were and if during this time you took any steps to clean out your lungs and exercise them too.
If you are or were a light smoker and have not been smoking too long and lead a healthy lifestyle you may still be in for a few years wait while your body cleans up your lungs. If you are a heavy smoker or have been for a long time then this can become a lot worse with up to 20 years of your body struggling to overcome those polluted lungs.
As you can see tar is an awful substance that the body has a very difficult time dealing with.
While your lungs are still coated with tar you can have many problems including lung cancer, emphysema and Bronchitis so if your body takes a long time to get rid of this tar you have more chance of suffering some horrendous health problems.
A Lung Detox will help your body speed this tar removal time up exponentially however so you can breathe easier and know you have cut your chances of lung disease by a huge amount.