Why Does My House Smell Musty If I Can’t See Mold? Common Causes and Hidden Sources
Written by Rarefied Air | October 12, 2026
A persistent musty smell often signals excess moisture somewhere in your home. It may point to hidden mold or other microbial growth, but odor alone cannot confirm mold. Catching it early matters. Musty air is unpleasant, but it can also point to hidden leaks, damp materials that invite mold, or HVAC problems that spread spores
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