« This bottle represents one liter of gas at 37°C and contains 22 mg of water vapor. Its Absolute Humidity is therefore 22 mg/L.

If we add more water vapor to this gas, its Absolute Humidity will increase. »

Clinical Examples:
By the time gases reach the lung, they have been warmed to 37°C and contain 44 mg/L absolute humidity.

Another term used to describe humidity is Relative Humidity.