A fume hood is a ventilated laboratory enclosure that protects users from hazardous chemical fumes, vapors, and dust by capturing, containing, and exhausting them away from the work area. It functions by pulling contaminated air into the enclosure using an exhaust system and venting it outside the building. Key components include a movable front sash for user access and a barrier against hazards, baffles for directing airflow, an airfoil for even air entry, and a blower and ductwork to vent the air outdoors. Fume hoods are essential safety equipment in laboratories working with volatile, toxic, or radioactive materials and require proper use and regular maintenance, including annual inspections, to ensure effective performance