This article describes a tool that was designed to help nurses deliver health education on the subject of passive smoking. The tool is based on a Scottish study, which encouraged mothers to identify their own strategies for reducing smoking in the home in order to protect their children from being exposed to second-hand smoke. It is designed to give nurses and other health professionals who work with families and children the knowledge, skills and confidence they need to raise the issue of second-hand smoke with parents and help them to find their own solutions to reducing smoking in the home. This article also takes into consideration the implications for nursing practice that relate to raising the issue of exposing children to second-hand smoke with parents and carers.