Table 1 Overview of the study products
Product | Nicotine content | Product usage |
|---|---|---|
No product usage | N/A | 5-min rest period |
E-cigarette (EPEN-0 mg) | 0 mg/ml nicotine | 5-min ad libitum |
E-cigarette (EPEN-12 mg) | 12 mg/ml nicotine | 5-min ad libitum |
E-cigarette (EPEN-18 mg) | 18 mg/ml nicotine | 5-min ad libitum |
Combustible Cigarette | N/A* | 1 stick 5-min ad libitum |