Laboratory fume hood is one of the most important Components personnel from exposure to hazardous chemical and agents used in the laboratory. These are designed to exhaust toxic/ harmful/ Vapor s etc. For protecting laboratory personnel & equipments. A motor – blower exhaust system generates negative pressure within the hood, extracting the contaminated air from the work area and expelling it into the atmosphere and preventing the fumes from escaping into the room. These are recommended in different laboratories like bio- chemistry, pharmaceutical units. These are capable of handling corrosive fumes of sulphuric and hydrochloric acids etc.