Once the air reaches 100 percent relative humidity, it cannot hold any more water in its gas form, or water vapor. If the air cools, water vapor comes out of the atmosphere in the form of a liquid ...

At Environics, Nafion™ tubing is used in water-to-gas humidifiers. These instruments allow water to move through the Nafion membrane, gaining equilibrium of the partial pressure of water vapor on ...

Too much water vapor or humidity in the air means there’s no room for sweat to evaporate from your skin. In other words, you might sweat, but the sweat doesn’t have anywhere to go.