Your air ducts may need cleaning, but not for the reason you might expect. Dirty air ducts lead to poor air quality and may cause or worsen illnesses, right? Maybe not. Although those air ducts might be lined with dust and, presumably, other pollutants, according to the United States Environmental Protection Agency, “Duct cleaning has never been shown to actually prevent health problems. Neither do studies conclusively demonstrate that particle (e.g., dust) levels in homes increase because Continue Reading ...