Definition - What does Wet Air mean?
Wet air is air that contains the highest level of water vapor. In general, air contains some moisture or water vapor, regardless of the temperature and air pressure. Adding more water to the air at a specific temperature in an enclosed area causes the air to absorb more moisture, which can be harmful to industrial processes, metal equipment and structures, due to increased corrosive reactions.
Wet air is also known as saturated air.
Corrosionpedia explains Wet Air
Once a particular point is reached, the air can no longer hold any additional moisture and all excess is converted to fog or dew. The air that contains the highest possible moisture content at a certain temperature is known as wet air or saturated air.
The amount of moisture that air is capable of holding depends on the temperature. The higher the temperature, the greater the amount of moisture the air can absorb. An accurate measurement of saturated air levels is essential to prevent damage due to corrosion.
Conversely, when the humidity is too low, another type of damage can occur. Air that is too dry can lead to cracking in equipment such as pipes and barrels. In industrial operations that necessitate less cooling, a lower level of saturated air can result in effective cooling or evaporation.