From: Equipment review: Mechanical effects of heat-moisture exchangers in ventilated patients
 |  | HME |  | |
---|---|---|---|---|
 | Heated humidifier | Low volume | High volume | HME-filter |
Apparatus compressible volume | +++ | +/0 | + | ++ |
Apparatus deadspace | 0 | + | ++ | +++ |
Dead space ventilation | 0 | + | ++ | +++ |
Apparatus inspiratory resistance | + | + | + | ++ |
Apparatus expiratory resistance | 0 | + | + | ++ |
Intrinsic PEEP | 0 | 0 | 0 | +* |
Total work of breathing | 0 | +/0 | + | ++ |