At WORKSHOP, they use real-life wet and dry messes in their testing and design their vacuums to strike the best balance between airflow and sealed suction. Airflow measures CFM (cubic feet per minute) of the volume of air moved, which is important when picking up dry messes. Sealed Suction (inches) measures the raw strength of suction when picking up liquids. The measurement that best captures both aspects of suction is Max Air Watts tested to ASTM standard, and the WS1200VA has among the highest in its class. This vac has a 7 foot long, 2-1/2 inch diameter hose, which effectively reduces clogging. The locking tab secures the hose tightly to the vacuum, which prevents suction loss during use. Their patented Dual-Flex technology prevents the hose from crimping and collapsing and offers 180° flexibility at both ends.