Table 2 Temperature and humidity of ambient air and of the medical gas under various conditions
From: Effect of a heated humidifier during continuous positive airway pressure delivered by a helmet
Temperature (°C) | Absolute humidity (mgH2O/l) | Relative humidity (%) | |
|---|---|---|---|
Ambient air | 20–22 | 9–12 | 50–60 |
Pipeline medical gases | 20–21 | 3–4 | 18–25 |
Ventilator medical gases | 22–26 | 3–4 | 16–19 |