In vivo performance of the ventilators with the recommended masks condition
| Conditions | Measurements | ||||||||
| Ventilator | Recommended mask | Subject | PEEP cmH2O | Peak P cmH2O | Δt ms | tI s | VT mL | Rebreathing % of VT | PP % |
| VENTImotion | SOMNOplus | 1 | 3.7 | 18.1 | 265 | 1.2 | 865 | 0 | 18 |
| 2 | 3.7 | 18.4 | 120 | 1.1 | 919 | 0 | 46 | ||
| 3 | 3.5 | 21.0 | 169 | 1.2 | 1213 | 30 | 34 | ||
| 4 | 3.5 | 18.8 | 185 | 1.4 | 1083 | 5 | 32 | ||
| 3.6±0.1 | 19.1±1.3 | 185±60 | 1.2±0.1 | 1020±159 | 9±15 | 33±12 | |||
| VPAP III STA | Ultra Mirage Full Face Medium | 1 | 2.9 | 18.6 | 75 | 1.8 | 1522 | 0 | 63 |
| 2 | 3.1 | 16.8 | 168 | 1.8 | 1164 | 0 | 44 | ||
| 3 | 2.7 | 17.3 | 77 | 1.3 | 1160 | 0 | 62 | ||
| 4 | 2.9 | 18.5 | 77 | 1.8 | 1517 | 0 | 63 | ||
| 2.9±0.2 | 17.8±0.9 | 99±46 | 1.7±0.3 | 1341±206 | 0 | 58±9 | |||
Data are presented as mean±sd, unless otherwise stated. PEEP: positive end-expiratory pressure; Peak P: peak airway pressure; Δt: time from inspiration onset to airway pressure above positive end-expiratory pressure; tI: inspiratory time; VT: tidal volume; rebreathing: percentage of expired volume remaining in the device circuit at the end of expiration; PP: pressurisation performance. VENTImotion: Weinmann, Hamburg, Germany; VPAP III STA: ResMed, Saint Priest, France; SOMNOplus: Weinmann; Ultra Mirage Full Face Medium: ResMed.