What is one of the primary consequences of low humidity in indoor spaces?

One of the primary consequences of low humidity in indoor spaces is the increase in respiratory irritants. When the humidity level is low, it can dry out the mucous membranes in the respiratory tract, making individuals more susceptible to irritants such as dust, pollen, and other airborne particles. This dryness can lead to discomfort, including dry throat, irritated sinuses, and exacerbation of asthma or allergy symptoms.

In contrast, excessive mold growth is typically associated with high humidity levels rather than low. Improved ventilation is generally a benefit of good indoor air quality and does not directly result from low humidity. Decreased energy costs do not correlate directly with low humidity levels either, as energy costs can be influenced by various factors, including overall building insulation and the efficiency of heating and cooling systems. Understanding the effects of humidity is vital for maintaining good indoor air quality and overall comfort.