E-cigarettes are advertised as a safe way to help people quit smoking tobacco cigarettes, often on the basis that there are fewer chemicals than in tobacco smoke. In Australia, it is illegal to sell e-liquids that contain nicotine. Miranda Ness, a senior research fellow at the Royal Adelaide Hospital and School of Medicine at the University of Adelaide in Australia, researches the effects flavoring chemicals may have on cells in the lung independent of nicotine effects and how this may differ from cigarette smoke.
There are hundreds of different e-cigarette devices on the market including "Mod" e-cigarettes which let you alter the settings on the device to best suit the users' particular tastes, including modifiable settings such as temperature. Ween also studies how the temperature used in the device may affect the potential risks of the inhaled vapor. The end goal of the work is to help define what risks may be present from flavoring chemicals and to compare them to tobacco smoke.