The support frame is industrial grade and made from electro-galvanized steel and aluminum. It has an oven-baked epoxy powder-coated finish. The baffle system is innovative and made of phenolic resin laminates that ensures air flow is uniform throughout the hood's main chamber. Containment is improved with its aerodynamic curved side profile. Moreover, its Progressive Bypass Airflow System allows redistribution of air intake whenever sash is closed. Air turbulence is eliminated through its aerodynamic design. It also reduces noise levels and losses in static pressure. Its Grade 304 stainless steel airfoil protects the operator by sweeping the work surface. It's tested independently and Invent-UK certified to meet BS7258:200, ASHRAE110-1995, and EN 14175-3 requirements.