what chemical causes cancer in cigarettes Smoking and Chemicals in Cigarettes and Tobacco:

With some airflow, a sensible flavour choice, and the right device for the space, most scent clears within minutes

However, my faith in that assumption is weakened every time I walk by an office building

I should add that it was a pleasure to see that the Washington Post s Laurie McGinley, with whom I covered the cigarette wars back in the mid-1990swhen we were both at the Wall Street Journal and giants roamed the earthwrote one of the better spot-news stories on the FDAs proposed regulation

Once a cigarette is put out, the smoke remains in the environment and can stay on surfaces for years although the smell is gone