Dirt contains moisture from the earth that will evaporate, rise, and create condensation on cooler surfaces like the HVAC system or air ducts. When condensation and humidity live together, it is a breeding ground for mold to grow. Mold releases mold spores into the air that flows right through your home which can bring a musty smell throughout your living space, and can cause allergies to flare up and can even make asthma to develop!
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