Moisture in the air refers to the presence of water vapor or humidity suspended in the Earth's atmosphere. It comes from various sources such as evaporation from bodies of water, plant transpiration, and human activities like cooking and breathing. The amount of moisture in the air is measured as relative humidity, which indicates the percentage of water vapor present compared to the maximum amount the air can hold at a given temperature. Weather conditions, such as temperature, air pressure, and wind, affect the amount of moisture in the air, leading to variations in relative humidity. High moisture levels can make the air feel humid and can impact human comfort, while low moisture levels can lead to dry conditions and potentially affect respiratory health.
