OPTIMUM INDOOR MOISTURE LEVEL

The amount of water vapour present in the air that is indoor is the moisture level in that particular indoor space. It has a huge role in defining the comfort level of the indoor space as well.

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There are many sources that can build or cut down the moisture level inside a home. These include ventilation, house plants, hot water steams from kitchen/bathroom, or even amount of machine that emit heat present in the house. Even the moisture level of outdoors will be a direct influence on the moisture levels of the insides. All these factors and more have a big part to play in determining the indoor moisture level.

While the definition of “ideal level” of moisture or humidity may vary owing to personal preferences or the place you live in, in general, 30-50% of moisture level is considered ideal and comfortable. This range of ideal indoor moisture level is determined by the studies of the Environmental Protection Agency (EPA).
30% to 50% moisture level is not in extremes, it provides a comfortable environment to sustain, prevents the growth of the microorganisms, and is also considered best for a healthy living environment. This level wouldn’t cause any harm and known to be the best suitable and safe ambience. Any amount of drop or rise outside this range of 30-50% may have some serious effects.

The moisture or humidity level above 50% is considered to be a harmful environment to reside in and has side effects on the physical health and the health of the house as well. Healthwise, excess moisture can increase issues for people suffering from asthma, allergies, or even cause nose/throat irritation, fatigue, etc. The health of the house is also adversely affected by excessive humidity. It promotes mould growth, musty smell, peeling wallpaper or paint, fogged windows or water stains on the walls and ceiling, and also can cause malfunctioning of electrical equipment.

Any moisture level that drops below 30% also has bad effects on the house as well as its members. It causes the air to be dry, shrinking wooden furniture, damaging wallpaper, sense of irritability, and more. To the members, it may cause cold or respiratory issues, dry skin, itchiness, dry eyes, and more to list.

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Therefore it is believed that the ideal range of indoor moisture level should be maintained and it shouldn’t be allowed to shoot up above 50% or drop down below 30% so as to have a safe and healthy home environment.