Waterpipe puffing regimens
| Regimen | Low | Modified Beirut | High | Beirut32 |
| Puff volume (mL) | 300 | 530 | 750 | 530 |
| Puff duration (s) | 3 | 3 | 3 | 2.6 |
| Puff interval (s) | 18 | 18 | 18 | 17 |
| Puffs per session | 171 | 171 | 171 | 171 |
| Session duration (min) | 60 | 60 | 60 | 61 |
| Mean puff flow (L/min) | 6 | 10.6 | 15 | 12.2 |
| Total volume (L)* | 51.3 | 90.6 | 128.25 | 90.6 |
*Total volume per session.