What is the impact of high humidity levels in indoor environments?

High humidity levels in indoor environments have a significant impact on indoor air quality. When humidity is elevated, it can lead to the growth of mold, mildew, and dust mites, which thrive in moist conditions. This not only affects the aesthetics and structural integrity of a building but also poses health risks to occupants. Breathing in air contaminated with these allergens can trigger respiratory issues, allergies, and other health problems. Additionally, high humidity can lead to discomfort, as it hampers the body's ability to regulate temperature through perspiration. Maintaining appropriate humidity levels is essential for ensuring indoor air quality is not compromised, making it vital in HVAC practice to monitor and control humidity for the health and comfort of occupants.