Completed duct cleaning for the Donnell’s. Arrived to jobsite and introduced myself to Mr. And Mrs.Donnell and was confirmed for a duct cleaning a few weeks back. House had a downstairs,Upstairs, and a basement area but was only wanting the downstairs completed for today. Downstairs area had 2 returns and 11 supplies. I asked a few questions and explained to the Donnell’s on what duct cleanings are and what they do. I explained any additional questions of theirs before moving on to do a thorough inspection. Inspected the floor vents and confirmed for cleaning (floor duct was metal duct).and returns were good for cleaning as well (vertical wall return). After discussing what I had found showing them via pictures of what I saw, after getting confirmation I quickly got started. After getting confirmation for cleaning, I took off all vent grills and cleaned each supply vent with a total of 5-6 passes each and returns were a total of 7-9 passes each and cleaned the grills with spinning br