white shield duct cleaning was done, house had 10 supplies (floor vents), and 2 returns. Inspected duct work in returns and inspected floor ducts and found residue of sand and dirt on all sides of the house. After inspection, i confirmed that it was good for cleaning. I put drop sheets on floor for return vents, cleaned return vents with 4-5 passes each. Cleaned grills outside with hose and wiped down with disinfectant wipes. Sprayed disinfectant spray within the whole duct system. Shot vac all supplies and shot vac grills as well. Cleaned up mess that was made and confirmed with customer with all their needs being met for that visit.