Vaping, or electronic cigarette use has risen rapidly in Australia since the late 2010’s. These small, handheld devices deliver large quantities of nicotine via a liquid that is aerosolised and inhaled. E-cigarettes were originally designed to aid cessation among heavy smokers by delivering nicotine in the absence of combustion and other toxic substances. They have instead largely been taken up by young people aged 10-26. Unlike traditional cigarettes, for which we have decades of evidence on their use, chemical constituents and long-term health consequences, the health harms of e-cigarette use are less well understood. This talk will provide an overview of the prevalence of e-cigarette use in Australia, factors associated with use and will discuss evidence-based approaches to vaping prevention and the emerging field of vaping cessation. It will also provide an insight into the debate between e-cigarette use as a cessation tool (harm reduction) and their risks to young people’s health.