1 doctor weighed in:

I quit smoking. How many years until my lungs are clean?

1 doctor weighed in
Dr. Robert Kassoff
Clinical Psychology

In brief: 2 years

There is research that suggests being smoke free for 2 years returns much of the function.
10 months sees a major improvement.

In brief: 2 years

There is research that suggests being smoke free for 2 years returns much of the function.
10 months sees a major improvement.
Dr. Robert Kassoff
Dr. Robert Kassoff
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