I am a skilled professional that works for a Alaskan Air Conditioning & Heating - Phoenix company. I recently completed a ductwork cleaning project for a residential customer. The project involved removing all the ductwork from the home, cleaning the ducts, and then reinstalling the ducts. The ducts were cleaned using a powerful vacuum system that removed all the dirt, dust, and debris from the ducts. The ducts were then treated with a disinfectant to kill any bacteria or viruses that may have been present. Finally, the ducts were reinstalled in the home and tested to ensure that they were working properly. The customer was very pleased with the results and said that they could already feel the difference in the air quality in their home.