A Ducted Fume Hood is a type of ventilation system that primarily functions to provide personnel protection against toxic fumes, vapors, and dust. This containment device is connected to a ducting where contaminants pass before being exhausted into the environment. Its secondary function includes protection against chemical spills, runaway reactions, and fires by acting as a physical barrier. These fume hoods are designed to have precisely tuned aerodynamics, total systems and design flexibility, aesthetics and ergonomics to provide outstanding user safety and convenience.