Humidity Relative

Air humidity is one of the most important indicators that determine human living conditions. It is a quantitative characteristic of air humidity, which is defined as the ratio of absolute air humidity to the partial pressure of saturated water vapor at a given temperature.

Absolute air humidity is the amount of water vapor present in the air at a given time. It is measured in grams per cubic meter (g/m³). The partial pressure of saturated water vapor is the pressure that water vapor exerts at a given temperature and humidity. It is also measured in kilograms per square meter (kg/m²).

Relative humidity is the ratio of absolute humidity to the partial pressure of saturated water vapor. It is expressed as a percentage and is usually denoted as RH. Air humidity affects our health and comfort. For example, high humidity makes the air heavier, which can lead to fatigue and difficulty breathing. Also, high humidity can contribute to the development of various respiratory diseases.

With hygienic air standardization, relative humidity usually does not exceed 60-70%. This is because at higher humidity, various respiratory diseases such as asthma and bronchitis can develop. In air hygiene monitoring, relative humidity is also an important indicator, as it can indicate the presence of harmful substances in the air, such as dust and aerosols.

Thus, relative air humidity is an important characteristic that affects our health and living comfort indoors. Its value must be controlled and comply with hygienic standards.