Table 4.
Mean ± standard deviation of drug (µg) captured on expiratory filter across three devices with differing ventilation strategies.
| Device Type | Ventilation Type | Expiratory Filter Mean ± SD (µg Drug) |
Expiratory Filter Mean ± SD (% Exhaled Drug) |
|---|---|---|---|
| VMN | STD | 211.40 ± 35.90 | 8.46 ± 1.43 |
| LTV | 162.80 ± 28.40 | 6.51 ± 1.14 | |
| JN | STD | 273.20 ± 39.50 | 10.93 ± 1.58 |
| LTV | 400.30 ± 36.30 | 16.01 ± 1.45 | |
| pMDI/CombiHaler | STD | 33.54 ± 4.27 | 8.38 ± 1.07 |
| LTV | 58.15 ± 6.10 | 14.54 ± 1.52 | |
| pMDI/MiniSpacer | STD | 36.00 ± 7.43 | 9.00 ± 1.86 |
| LTV | 37.54 ± 4.56 | 9.38 ± 1.14 | |
| pMDI/F&P Wye | STD | 29.54 ± 7.49 | 7.38 ± 1.87 |
| LTV | 48.92 ± 4.54 | 12.23 ± 1.13 |