Humidity is the amount of water vapor in the air. It is often expressed as a percentage of the maximum amount of water vapor that the air can hold at a given temperature. Relative humidity is a measure of how much water vapor is in the air compared to the maximum amount that the air can hold at a given temperature. For example, if the relative humidity is 50%, then the air contains half of the maximum amount of water vapor that it can hold at that temperature.
High humidity can lead to a number of problems, including:
