Which of the following practices can help reduce the potential for mold growth indoors?

Using exhaust fans in high-moisture areas is a practice that is effective in reducing the potential for mold growth indoors. Mold thrives in environments that are damp and humid, typically resulting from excess moisture generated in areas such as bathrooms, kitchens, and laundry rooms. Exhaust fans help to remove this moisture-laden air from the indoor environment and replace it with drier air from outside. This process effectively lowers humidity levels, making conditions less favorable for mold spores to settle and grow.

In contrast, keeping windows closed can trap moisture indoors and potentially create a stagnant environment conducive to mold growth. Increasing indoor humidity would lead to a higher likelihood of mold development, as mold requires moisture to proliferate. Additionally, while maintaining warm temperatures can influence mold growth, it does not inherently reduce moisture levels, which is crucial for mold prevention. Hence, utilizing exhaust fans strategically addresses the moisture problem directly, making it a key practice for mold prevention.