What is specific humidity and how does it affect your well-being

An improper humidity level, whether too high or too low, can put your health at risk. There are three types of humidity: absolute humidity, specific humidity, and relative humidity. The first refers to the amount of water vapor per unit of volume of ambient air. The second, also refers to the amount of water vapor contained in the air, but instead of being measured in grams per cubic meter (like absolute humidity), it is measured in grams per kilogram of dry air. Relative humidity refers to the amount of water vapor that the air contains in comparison with the maximum amount it can hold without changing its temperature.

Problems arising from an improper humidity level

Regardless of the method used to evaluate the amount of water vapor in the air, if we want to ensure maximum comfort and not negatively influence the thermal balance of our body, it is imperative to control this environmental parameter.

Except in areas where there is danger from static electricity, it is recommended that the humidity level be between 30% and 70%. As mentioned earlier, both too low and too high humidity can put our health at risk.

Low humidity

A humidity level below 30% dries out mucous membranes and the skin, and irritates the eyes and respiratory tract. In addition, it does not favor the elimination of static electricity.

High humidity

A humidity level above 70% encourages the appearance of mold and dust mites, thus increasing the risk of allergies, asthma, and other respiratory problems. On the other hand, it hinders the dissipation of sweat, meaning less heat is removed from our body, which increases thermal discomfort.

A level above 70% not only affects the health of the occupants but can also cause serious damage to our housing, as it encourages the emission of pollutants from certain materials (formaldehyde) and their corrosion.

Do not overuse heating

Considering that ambient humidity decreases when we increase the temperature of the air (and vice versa), precautions must be taken when using traditional heating systems, as their overuse can dry the air below the recommended level. The problem worsens when exposure to these heating systems is prolonged for hours. On the other hand, if the thermal bridges of the envelope are not controlled, excess interior temperature can cause condensation of water vapor on cold surfaces.

Control humidity with an efficient ventilation system

The best preventive measure to avoid problems caused by inadequate humidity levels is to provide our homes with sufficient ventilation flow to ensure air renewal. By sweeping effect, we will remove stale air from the interior and provide fresh, clean air free of impurities. Additionally, if we install controlled mechanical ventilation systems with intelligent devices (hygroregulated mouths and sensors that adjust the humidity of the supplied air to that of the indoor air) we will ensure indoor environments with humidity levels within the recommended parameters.