Local Exhaust Ventilation Diagrams » Workbench

diagram of workbench highlighting the various features

Design Criteria

  • Q = 350 cfm/lineal ft of hood
  • Hood length = required working space
  • Bench width = 24" maximum
  • Duct velocity ≥ 4,500 fpm
  • hesub = 1.78 VPslot + 0.25 VPduct