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| Experiments | Test variables | Range of variables |
|---|---|---|
| 108-sample (= 3×4×9) | Flow rate (L/min) | 27, 30, 33 |
| Asthmatic model | D0 (normal), D1 (25%), D2 (50%), D3 (75%) | |
| Particle diameter (μm) | 0.2, 0.4, 0.6, 0.8, 1, 2, 3, 4, 5 | |
| 324-sample (= 3×4×9×3) | Flow rate (L/min) | D0, D1, D2, D3 |
| Asthmatic model | D0, D1, D2, D3 | |
| Particle diameter (μm) | 0.2, 0.4, 0.6, 0.8, 1, 2, 3, 4, 5 | |
| Upper airway (UA) | Upper airway (UA) |
