Spacer aerosol output
| Salbutamol | BDP | |||
|---|---|---|---|---|
| Funhaler | Breath-A-Tech | Funhaler | Breath-A-Tech | |
| No significant differences between spacers for either salbutamol or BDP (p>0.05). | ||||
| Mean (SE) percentage ex-actuator dose | ||||
| Extrafine particle fraction (<3.1 μm) | 20.25 (0.97) | 20.65 (0.56) | 12.69 (0.46) | 14.95 (1.11) |
| Particles <6.8 μm | 32.98 (1.28) | 36.30 (0.67) | 25.60 (1.14) | 31.21 (2.01) |
| Mean (SE) percentage ex-spacer dose | ||||
| Extrafine particle fraction (<3.1 μm) | 49.62 (1.95) | 43.97 (0.90) | 28.23 (1.00) | 29.39 (0.69) |
| Particles <6.8 μm | 80.74 (0.89) | 77.31 (0.88) | 56.90 (1.93) | 61.41 (0.95) |