Semi-Automatic Fume Cupboard Materials 1.0 mm cold-rolled steel sheet Airflow Technology Adopts multi-duct laminar flow air supply Make-up air ratio: 60% Air Volume Parameter Standard height: exhaust air flow 220-360 m³/h Qualified air leakage rate, energy-saving Basic Cabinet Configuration Standard: two double-door storage cabinets Support frame-type structural upgrade Optional Accessories Fireproof chemical cabinet / waste liquid cabinet / waste bin Guarantee lab safety & sanitation Ventilation Connection Upper & lower cabinets all connectable to exhaust system https://www.ukenlab.com/fume-hoods/semi-automatic-fume-cupboard