What is a primary method for preventing mold growth indoors?

Controlling indoor humidity is a critical factor in preventing mold growth indoors. Mold thrives in environments with high moisture content, typically above 60% relative humidity. By maintaining indoor humidity levels between 30% and 50%, you can significantly reduce the likelihood of mold spores germinating and proliferating. This can be accomplished through various means such as using dehumidifiers, ensuring proper ventilation in areas like bathrooms and kitchens, and promptly addressing any leaks or water intrusion issues.

Regularly cleaning surfaces is beneficial for general cleanliness and removing spores, but it doesn't directly address the moisture levels that support mold growth. Painting walls with waterproof paint can offer some protection against mold, but it is not a preventive measure that tackles the root cause of moisture. While using air fresheners may improve the smell of indoor spaces, they have no effect on humidity levels and do not contribute to mold prevention. Thus, controlling indoor humidity is the most effective and direct approach to preventing mold growth indoors.