The general public and a few key populations within it

• Workers (and their employers), especially nonsmoking workers whose workplaces do not have 100 percent smoke-free policies, are most likely to respond to evidence that they are being harmed by their co-workers' smoking.
• Health care professionals and administrators, scientists, teachers, priests, celebrities, journalists, policymakers, and other community leaders can speak with authority on the issue.
• Parents, are most likely to respond to messages that convey how seriously passive smoking affects their children.