What conditions promote mold growth indoors?

The conditions that promote mold growth indoors are characterized by high humidity, water leaks, and poor ventilation. Mold thrives in environments where moisture is present, as it provides the necessary water for mold spores to germinate and flourish. High humidity levels, typically above 60%, create an ideal atmosphere for mold to develop.

Water leaks can arise from various sources, such as plumbing failures, roof leaks, or condensation on cold surfaces. These sources of moisture not only provide a direct water supply for mold but also can lead to damp materials, such as drywall, wood, or carpeting, creating conducive living conditions for mold growth.

Poor ventilation exacerbates these conditions, as it limits the airflow and the drying of damp areas, trapping moisture indoors. Proper ventilation helps to remove humid air and introduce drier air, reducing the likelihood of mold infestations.

In contrast, conditions such as low temperatures and dry air do not support mold growth, as mold requires a certain level of moisture and warmth to thrive. Excessive sunlight is also not conducive to mold, as ultraviolet light can inhibit its growth. Regular cleaning and maintenance help to keep moisture levels and debris in check, making it less likely for mold to establish a presence indoors. Hence, option B accurately outlines the primary factors