When sizing ventilation ductwork, the maximum air velocity should be limited to avoid noise whilst minimum velocities must be maintained for effective particle suspension in fume extract and local exhaust ventilation (LEV) systems.
a single aspect of a given thing
When sizing ventilation ductwork, the maximum air velocity should be limited to avoid noise whilst minimum velocities must be maintained for effective particle suspension in fume extract and local exhaust ventilation (LEV) systems.