Business Email [email protected] Business Description A1 Air Duct is a certified, insured air duct and HVAC cleaning firm for Residential, Medical Centers, Commercial Buildings, Industrial Plants and many more! We specialize in Indoor Air Quality (IAQ), cleaning of ventilation systems and air duct cleaning, using the latest technology. Our team uses powerful gas vacuums and special HEPA negative air machines to clean air ducts and ventilation systems around the Dallas, TX area. We also provide Indoor Air Quality assessment and are able... read full review »