Performed an air duct cleaning and sanitation on a 3 bedroom apartment. All vents and ductwork are clear of dust and debris at this time. System is functioning properly at this time. Some of the vents near the system appear to have microbial growth on them. Our process does not remove this and we recommend replacing the vent covers. Performed a first floor dryer vent cleaning. Dryer vent, duct, flex duct and lint trap are all clear of lint and debris at this time . Dryer is functioning properly at this time and exhaust flow is optimal. Recommend dryer vent cleaning every 1-2 years. Thank you for your business! This is a billout