How to Check for Mold on HVAC Vents?
Dark stains alone cannot confirm mold. A flashlight and hygrometer can reveal moisture patterns in about 10 to 15 minutes. Dry dust looks different from damp growth.
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Sarah Mitchell
Sarah Mitchell focuses on indoor air quality and ventilation topics. Her articles explore common causes of dust, dirt, mold, and other concerns that can affect air ducts and vents.
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