How can mold growth be prevented in indoor environments?

Controlling moisture levels is a critical strategy for preventing mold growth in indoor environments. Mold thrives in damp conditions, so maintaining an appropriate humidity level is essential. Keeping indoor humidity below 50% reduces the likelihood of mold spores finding the moisture they need to grow. This can be achieved through various measures, such as using dehumidifiers, ensuring proper ventilation, fixing leaks, and using exhaust fans in high-moisture areas like kitchens and bathrooms.

The other options do not effectively address the underlying issue of moisture, which is the primary factor enabling mold growth. Eliminating indoor plants may reduce some moisture, but it is not a holistic or sustainable approach to moisture control. Air fresheners primarily mask odors rather than control moisture levels, therefore they do not contribute to mold prevention. Sealing windows shut can trap moisture indoors and lead to higher humidity levels, creating an environment conducive to mold development. Thus, focusing on moisture control directly targets the root cause of mold growth, making it the most effective preventative measure.