Basements are notorious for developing a musty smell. This is true whether you have a completely finished basement decked out with carpet and furniture, or you use this space as more of a storage or task-oriented destination.
“The musty smell in basements is usually caused from mold, mildew, or bacteria that thrive in the humid environment created by basements,” explains Taylor Riley, a cleaning professional and co-founder of Impact Cleaning Professionals.
To know more: https://www.realsimple.com/how-to-get-rid-of-musty-smells-in-basement-8693556