Holder | Puff duration | Puff interval | Airflow rate (mL/s) | Puff volume (mL) | Total number of puffs | Average pressure drop (mm H2O) | Average absorbance |
Low airflow rate 2 s protocol* | |||||||
A | 2 | 25 | 7 | 14 | 14 | 13±5 | 0.42±0.08 |
B | 2 | 25 | 7 | 14 | 14 | 13±4 | 0.45±0.08 |
C | 2 | 25 | 7 | 14 | 14 | 18±7 | 0.46±0.06 |
Low airflow rate 4 s protocol† | |||||||
A | 4 | 25 | 7 | 28 | 14 | 9±4 | 0.41±0.05 |
B | 4 | 25 | 7 | 28 | 14 | 11±4 | 0.46±0.09 |
C | 4 | 25 | 7 | 28 | 14 | 10±4 | 0.49±0.04 |
ISO standard‡ | |||||||
A | 2 | 60 | 17.5 | 35 | 6 | 62±5 | 0.49±0.10 |
B | 2 | 60 | 17.5 | 35 | 6 | 65±8 | 0.54±0.09 |
C | 2 | 60 | 17.5 | 35 | 6 | 57±5 | 0.49±0.04 |
HCI standard§ | |||||||
A | 2 | 30 | 27.5 | 55 | 12 | 103±9 | 0.26±0.03 |
B | 2 | 30 | 27.5 | 55 | 12 | 100±9 | 0.41±0.05 |
C | 2 | 30 | 27.5 | 55 | 12 | 105±13 | 0.42±0.05 |
Manufacturer’s recommended cleaning (HCI)¶ | |||||||
E | 2 | 30 | 27.5 | 55 | 12 | 103±12 | 0.46±0.06 |
*Per-use cleaning protocol, standard pump head with Tygon 15 tubing.
†Per-use cleaning protocol, standard pump head with Tygon 15 tubing.
‡Per-use cleaning protocol, high-performance pump head with Tygon 15 tubing.
§Per-use cleaning protocol, high-performance pump head with Tygon 36 tubing.
¶Manufacturer’s recommended cleaning, HCI, high-performance pump head with Tygon 36 tubing.
HCI, Health Canada Standard ; ISO, International Organization for Standardization; iQOS, I quit original smoking.