About a year-and-a-half after the ban, mirroring state law except it included casinos and bars, went into effect, air quality in a sample of those businesses showed indoor air pollution dropped 98 percent. The group that sponsored the testing hailed these results as victory for people employed in those establishments in their avoiding second-hand smoke.
But the real winners are the growing segment of adult Americans who suffer from some kind of respiratory ailment. About three in ten have one of emphysema, asthma, hay fever, sinusitis, or chronic bronchitis. A much smaller proportion have much more serious conditions that require consistent medical intervention to allow them to breathe.