Fume-Hoods

A fume chamber or fume hood or fume cupboard is a type of local ventilation systems that is designed to limit coverage to toxic fumes, hazardous, dusts or vapors. The fume hood is two main types exist, PVC ducted and carbon filter recirculating (ductless). Other related types of local ventilation systems (devices) include: Laminar air flow, Biosafety cabinets, Clean benches, glove boxes and snorkel exhausts.

All local ventilation systems (devices) are designed to three primary goals:

To protect the user from inhaling toxic fumes (Fume hoods, Glove boxes, Biosafety cabinets)

To protect the product or testing (experiment) (glove boxes and biological safety cabinets)

To protect the atmosphere (recirculating fume hoods, biological safety cabinets, the exhaust airstream)

Fume hoods naturally protect only the user, and are maximum commonly used in laboratories where noxious chemicals or hazardous are released research development, during testing, practicing and also used in industrial applications or other activities where noxious vapors or gases or hazardous or dusts are generated or released. Inspection of Fume Hoods  should be inspected in accordance with the American Society of  Engineers (ASHRAE 110)  to certify proper control and ASHRAE 110 means quantifying containment performance

Fume Hood Design :

Inflammable and  acid material storage cupboards (cabinet)

Sash

Alarms, sensors, controls, and gauges

Air foil (Sill)

Air jambs

Baffles

Operating Performance

Location

Face velocity

Air flow indicators

Inspection of Fume Hoods Fume chambers or hoods are inspected in accordance with the American Society of  Engineers ASHRAE 110 to certify proper control and ASHRAE 110 means quantifying containment performance
ANSI/ASHRAE 110-1995, “Method of Testing Performance of Laboratory Fume Hoods”
SEFA 1-2002, “Laboratory Fume chamber or Hoods, Recommended Practices”
SEFA 1.2-1996, “Laboratory Fume chamber or Hoods, Recommended Practices”

Fume Hoods Specifications :

Ergonomic features, like taller sight lines, a crush-resistant sill airfoil, and a wire chase that keeps cords out of your way.

Advanced ergonomic features, like an optional and innovative automatic sash control that automatically moves back to the correct working position while leaving your hands free.

Safety features that are far above the industry standard – including higher-rated safety glass, thicker liner board, and consistent airflow delivery for the life of the hood.

Innovative design that offers more usable space — ideal for a tall or bulky apparatus, material, or process.

Quality construction for longer life, for all-welded steel frames to forged brass bodies on the remote service fixtures.

Fume Hoods Applications

All safety critical exhaust systems including

Universities lab

Hospitals

Samples testing Laboratories

Steel manufacturing industry

Research facilities

Hospital/infirmary isolation rooms

Chemical Laboratories

Correction facilities

Government facilities

Heat recovery system

Hydrocarbon processing plants

Wastewater/sewage treatment plants

Industrial solvents

Food processing/preparation facilities

Diesel generator exhaust