Second hand smoke poses a danger to the health of non-smokers. In the mid 1970s, awareness grew about the dangers of second hand smoke and non-smokers began to demand smoke-free environments. As a result, public and private employers began implementing policies to restrict and ban smoking in the workplace. As recently as 1996 more than 64% of workers reported that their workplaces were smoke-free. That is a dramatic increase from just 3% of workers one decade earlier.
According to the National Cancer Institute, worksite bans increase the rate at which smokers attempt to quit as well as their success rates. Research suggests that bans also reduce the number of cigarettes smoked per day among smokers who continue to smoke.