YES. Maintaining aluminum flexible ducts requires cleaning, which is doable with the correct techniques:

1. Fill a bucket with warm water and recommended dishwashing detergent, and prepare a vacuum cleaner, cloths, and a flashlight.

2. Easily remove the cover of the duct, either by levering or unscrewing, depending on the design.

3. Place the duct on a sturdy, elevated, smooth, and flat surface.

4. Use the vacuum cleaner to remove accumulated dirt from the duct, as it provides sufficient pressure and portability.

5. Clean the internal surfaces of the unit with a damp rag mixed with detergent and warm water, then allow it to dry before reattaching the cover.

It’s crucial to clean according to the manufacturer’s recommendations. If uncertain, professional duct cleaning services can ensure safe and effective cleaning without damaging the ductwork. Regular cleaning helps maintain airflow efficiency and extends the lifespan of the ductwork.