Laboratory fume hoods is a type of local exhaust ventilation system. Their primary function is to exhaust chemical fumes, vapors, gases, dust, mist and aerosol. Fume hoods also serve as physical barriers between reactions and the laboratory, offering a measure of protection against inhalation exposure, chemical spills, run-away reactions and fires.

A typical fume hood is a cabinet with a moveable front sash (window) made out of safety glass. They allow laboratory personnel to work with potentially harmful or fatal materials at close range, safely and conveniently.

Types of Fume Hoods

• Bench mounted type: Low bench type for distillation
• Walk-in hood : Units with auxiliary chambers