Table 1.
Absolute humidity, with and without active humidification, in the investigated steps
| Without heated humidification | With heated humidication | ||||
| FiO2 | Gas Flow 60 L/min |
Gas Flow 80 L/min |
Gas Flow 60 L/min |
Gas Flow 80 L/min |
|
| 0.35 | Temp° | 26.3±0.6 | 26.5±0.8 | 29.0±0.0 | 28.9±0.2 |
| RH (%) | 30.8±8.5 | § | 28.5±5.7§ | 54.3±4.4 | 52.0±3.2 |
| AH (mgH2O/L) | 7.7±2.3* | 7.1±1.5 | 15.7±1.4 | 14.9±0.9 | |
| 0.5 | Temp° | 26.0±1.2 | 26.0±1.3 | 29.0±0.1 | 29.0±0.2 |
| RH (%) | 26.2±4.9§ | 25.0±1.0§ | 52.0±3.6 | 54.5±1.1 | |
| AH (mgH2O/L) | 6.6±1.6* | 5.9±0.2 | 14.9±1.0 | 14.1±0.9 | |
| 0.7 | Temp° | 25.5±0.9 | 25.8±1.3 | 28.9±0.2 | 29.0±0.0 |
| RH (%) | 20.1±2.4§ | 21.0±2.8§ | 51.0±3.1 | 51.3±1.5 | |
| AH (mgH2O/L) | 4.9±0.8* | 5.0±0.9 | 14.6±0.1 | 14.7±0.4 | |
| 1 | Temp° | 25.4±0.7 | 25.5±1.0 | 26.0±0.1 | 29.0±0.0 |
| RH (%) | 14.8±2.3§ | 13.0±2.2§ | 54.2±3.0 | 49.0±5.2 | |
| AH (mgH2O/L) | 3.6±0.6* | 3.1±0.5 | 13.4±1.0 | 14.1±1.5 | |
Legend:
Temp°: temperature, RH : relative Humidity, AH : Absolute Humidity
*repeated measures analysis of variance (rm ANOVA) = p < 0.001
§ repeated measures analysis of variance (rm ANOVA) = p < 0.001