For high-volume vapers who are honest about how quickly they go through devices, the math is straightforward
Mitsui et al
Imarcgroup Next Steps: Validate HTP Consumption Frequency: Research the "dual-use" rate (smokers who use both HTPs and cigarettes) to understand transition timing
A preliminary test on a newly-constructed piece of electronic equipment, consisting simply of the application of electrical power, to make sure that no egregious wiring errors exist which would cause the circuitry to emit smoke, catch fire, explode, etc
The content is organized into four main sections: Tobacco Use, Disparities, Health & Economic Impact, and Tobacco Control Policy Advances
This study is robust to that, with saliva and urine tests to verify smoking cessation