Basements, crawl spaces, bathrooms, and areas around plumbing are common mold locations — often in spots you wouldn't check without reason to look.
Warmer, more humid air combined with condensation and increased moisture creates conditions where mold is more likely to develop.
A musty odor without visible growth often means mold is present somewhere you can't see — testing is the way to find out for certain.
Lower humidity control, limited airflow, and ground-level moisture make basements and crawl spaces the most common areas for mold growth.