A musty smell in a clean-looking home often comes from **hidden moisture and poor ventilation**, not from a lack of cleaning. Damp towels, bath mats, sponges, washing machines, closets, carpets, drains, and small leaks under sinks can all create unpleasant odors. The best solution is to find and remove the source by drying damp materials, improving airflow, cleaning the washing machine, checking for leaks, and reducing humidity. If the smell persists or there is visible mold or water damage, the underlying moisture problem should be addressed rather than simply covering the odor with air fresheners.
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