Air watts
A combined measure of suction and airflow used to rate cordless vacuum cleaning power.
Air watts (AW) measure the actual cleaning power delivered at the vacuum's cleaner head: airflow (how much air moves) multiplied by suction (how hard it pulls). It is a more honest number than raw motor wattage, which only tells you how much electricity the motor draws, not how well the machine actually lifts dirt. When comparing cordless stick vacuums, a higher air-watt figure generally means stronger performance on carpets and embedded dirt, though runtime and battery capacity still decide how long that power lasts per charge.
Relevant to