Table 1.
Device and e-liquid characteristics.
| Device ID | Commercial Name | Coil | Shape | Power (W) | Resistance (Ohm) | Battery voltage | Flavor | Nicotine content (mg/mL) | Aerosol samples (n) | pH |
|---|---|---|---|---|---|---|---|---|---|---|
| CD1 | BLU | Nichrome | Cigalike | N/A | N/A | 3.7 V | Blueberry | 24 | 7 | ND |
| Tobacco | 24 | 14 | ND | |||||||
| Menthol | 0 | 7 | ND | |||||||
| Menthol | 24 | 9 | ND | |||||||
| CD2 | JUUL | Nichrome | Pod | N/A | N/A | N/A | Fruit medley | 59 | 3 | ND |
| Cool mint | 59 | 3 | ND | |||||||
| Tobacco | 59 | 3 | ND | |||||||
| OD1 | Istick 25 | Kanthal | Tank | 1–85 | 0.2 | 3.7 V | Blueberry | 0 | 3 | 5 |
| Blueberry | 6 | 3 | 6.1 | |||||||
| Blueberry | 24 | 3 | 6.5 | |||||||
| Tobacco | 0 | 3 | 4 | |||||||
| Tobacco | 6 | 3 | 7.9 | |||||||
| Tobacco | 24 | 3 | 8.6 | |||||||
| Menthol | 0 | 3 | 6.2 | |||||||
| Menthol | 6 | 3 | 8.4 | |||||||
| Menthol | 24 | 3 | 8.5 | |||||||
| OD2 | SMOK | Stainless steel | Tank | 6–220 | 0.6 | 2 × 3.7 V | Blueberry | 0 | 3 | 5 |
| Blueberry | 6 | 3 | 6.1 | |||||||
| Blueberry | 24 | 3 | 6.5 | |||||||
| Tobacco | 0 | 3 | 4 | |||||||
| Tobacco | 6 | 3 | 7.9 | |||||||
| Tobacco | 24 | 3 | 8.6 | |||||||
| Menthol | 0 | 3 | 6.2 | |||||||
| Menthol | 6 | 3 | 8.4 | |||||||
| Menthol | 24 | 3 | 8.5 |
N/A=not available (Information not indicated directly on packages, not available on the internet, and not obtained after direct contact with the manufacturer). For open-system devices (OD1, OD2), n denotes the number of aerosol samples collected at intermediate power setting.