Your home’s or business’s ductwork carries millions of seen and unseen contaminants and particles through the air every day. Because your system becomes dirtier with time and use, air duct cleaning is a fundamental service for improving and maintaining your indoor air quality Al Sohba Group's HVAC experts understand the importance and the mechanics of thorough and routine air duct cleaning services. 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 of dirty air ducts. This is because much of the dirt in air ducts adheres to duct surfaces and does not necessarily enter the living space. It is important to keep in mind that dirty air ducts are only one of many possible sources of particles that are present in homes. Pollutants that enter the home both from outdoors and indoor activities such as cooking, cleaning, smoking, or just moving around can cause greater exposure to contaminants than dirty air ducts. Moreover, there is no evidence that a light amount of household dust or other particulate matter in air ducts poses any risk to your health.