Preventing mold growth involves controlling moisture levels in your property. Ensure that your home or business is well-ventilated, especially in areas prone to moisture such as bathrooms and kitchens. Fix any leaks or water damage promptly, and use dehumidifiers to reduce humidity levels. Regularly inspect areas that are susceptible to mold growth, such as basements and attics. If you have experienced mold issues in the past, consider applying an antimicrobial solution to affected surfaces to prevent future growth.