Definitions for "Face Velocity"
Keywords:  fpm, velocity, acfm, hvac, fume
Air velocity at the cabinet work opening, velocity of the air entering the cabinet at the work opening.
Air movement or velocity measured at booth openings. Average speed of air that is drawn through the booth openings measured in FPM.
The gas flow rate expressed in actual cubic feet per minute (ACFM) divided by the area of the filter element. For example, a 20 square foot filter element processing 2000 ACFM would have a face velocity of 100 feet per minute.