Table 1 Study arms and product characteristics.
Products | Short code | Article | Category | Brand | Nicotine conc. (mg/mL) | Protonation levels | Flavour | Puff protocol |
|---|---|---|---|---|---|---|---|---|
A | N/A | Control | Cigarette | B&H Skybluea | N/A | N/A | N/A | Ad libitum |
B | N/A | Control | Cigarette | B&H Skybluea | N/A | N/A | N/A | Fixed |
C | ePen2.0BT18 | Comparator | e-cigarette | Vype ePen | 18 | Unprotonated | Blended Tobacco | Ad libitum |
D | ePen3.0BT18 | Test #1 | e-cigarette | Vype ePen3 | 18 | Unprotonated | Blended Tobacco | Ad libitum |
E | ePen3.0MB18VP | Test #2 | e-cigarette | Vype ePen3 | 18 | Medium protonation | MasterBlend Tobacco | Ad libitum |
F | ePen3.0MB30VP | Test #3 | e-cigarette | Vype ePen3 | 30 | High protonation | MasterBlend Tobacco | Ad libitum |
G | ePen3.0MB18VP | Test #4 | e-cigarette | Vype ePen3 | 18 | Medium protonation | MasterBlend Tobacco | Fixed |
H | ePen3.0MB12VP | Test #1 | e-cigarette | Vype ePen3 | 12 | Low protonation | MasterBlend Tobacco | Ad libitum |
