Assessing electronic cigarette effects and regulatory impact: Challenges with user self-reported device power

摘要

BackgroundElectronic cigarettes (ECIGs) aerosolize liquids for user inhalation that usually contain nicotine. ECIG nicotine emission is determined in part by user behavior, liquid nicotine concentration and electrical power. Whether users are able to report accurately nicotine concentration and device electrical power has not been evaluated. This study’s purpose was to examine if ECIG users could provide data relevant to understanding ECIG nicotine emission, particularly liquid nicotine concentration (mg/ml) as well as battery voltage (V) and heater resistance (ohms, Ω) – needed to calculate power (watts, W).