Performed 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. Used some extra sanitizer and fresh duct due to cigarette smell in master bath. Recommend duct cleaning every 3-4 years. Performed a first floor dryer vent cleaning. Performed dryer vent cleaning from the inside using nikro vacuum due to bird cage being siliconed on. Dryer vent, duct, flex hose and lint trap are all clear of lint and debris at their 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