Fume hoods

Fume hoods are one of the most reliable engineering controls in the laboratory. They protect workers by containing vapors, dusts, gases, and fumes generated within the hood, and removing them as air flows into the hood and then out via the laboratory exhaust system, contributing to laboratory ventilation as air flows through the hood and shielding the worker with a clear sliding window, called a sash, that contains aerosols and prevents injury from splashes, fires, or minor explosions that may occur inside the hood.