Performed a 2 bedroom duct cleaning and sanitation. 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 a first floor dryer vent cleaning from the inside using brushes and vacuum. (Bird guard is excessively glued on.) 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. Thank you for your business!