Electrolux PU3650 QuietClean Central Vacuum Unit
Max coverage sq ft:
Self cleaning HEPA
What are Air Watts? Air watts are the true measurement of overall vacuum performance at the motor. Maximum Air watts is recognized by the American Society of Testing and Materials as the best way to measure the actual cleaning power of a central vacuum system.
Formula to calculate Air watts: (Suction) x (Airflow) divided by 8.5 = Air watts.