Performed air duct cleaning and sanitation on apt 17105. All vents and ductwork are clear of dust and debris at this time. System is functioning properly at this time. Recommend duct cleaning every 3-4 years. Performed dryer vent cleaning and removed birds nest at apt 17105. Dryer vent, duct, flex hose and lint trap are all clear of lint and debris at this time. Dryer is functioning properly at this time. Recommend dryer vent cleaning every 1-2 years. Performed air duct cleaning and sanitation on apt 21112. All vents and ductwork are clear of dust and debris at this time. System is functioning properly at this time. Recommend duct cleaning every 3-4 years. Performed dryer vent cleaning on apt 21112. Dryer vent, ductwork, flex hose and lint trap are all clear of lint and debris at this time. Dryer is functioning properly at this time. Recommend dryer vent cleaning every 1-2 years. Thank you for your business! This is a billout.