In states with strict flavor bans, the rules are simple: don't sell flavored products
E-cigarettes use batteries or electricity to heat a liquid until it turns into a mist
At a minimum, shouldn't it be mandatory for all future placebo-controlled trials to conduct the blinding integrity assessment outlined in Mooney 2004: "To determine the prevalence of failure, clinical trials of NRT should uniformly test the integrity of study blinds
However, if you still have trouble dealing with the issue, you can read the instructions mentioned above for how to get rid of cigarette smell to find an exact solution
A similar approach in Australia one that embraces harm reduction and affords easier access to less harmful nicotine products would also help reduce crime, reduce government expenses, limit impacts on individual liberty, and improve public health in a more sustainable, equitable, and efficient manner