At what humidity level should the indoor environment be maintained to inhibit mold growth?

To inhibit mold growth, maintaining indoor humidity levels at 60% or lower is considered ideal. Mold thrives in moist environments, and relative humidity above this threshold can create conditions conducive to mold development. Keeping indoor humidity at or below this level significantly reduces the likelihood of mold spores settling and germinating.

Research indicates that most types of mold begin to grow when the relative humidity exceeds approximately 60%. By controlling humidity levels within this range, it becomes easier to manage indoor air quality and prevent the proliferation of mold, thereby protecting both health and property.

Areas with higher humidity, such as above 60%, may allow for faster mold growth and can lead to potential health issues for occupants as well as structural damage to buildings. Therefore, ensuring humidity is kept at 60% or lower is a proactive measure in mold prevention strategies.