Completed duct cleaning for customer. Spoke with customer after introduction about a duct cleaning inside their home. Home has 13 supplies and 3 returns. After inspection, I was able to confirm cleaning. After confirmation, I laid out drop sheets under every vent, took down all grills and cleaned with duct cleaning machine and did each duct for 4-5 passes each. And then sprayed hospital grade disinfectant for about 30-60 seconds. I then swept up any messes that drop sheets didn’t catch and then replaced filters and cleaned up any messes before collecting and leaving.