A fume hood is typically a large piece of equipment enclosing five sides of a work area, the bottom of which is most commonly located at a standing work height.Two main types exist, ducted and recirculating (ductless). The principle is the same for both types: air is drawn in from the front (open) side of the cabinet, and either expelled outside the building or made safe through filtration and fed back into the room. This is used to:
*Protect the user from inhaling toxic gases (fume hoods, biosafety cabinets, glove boxes) *Protect the product or experiment (biosafety cabinets, glove boxes) *Protect the environment (recirculating fume hoods, certain biosafety cabinets, and any other type when fitted with appropriate filters in the exhaust airstream)
Worktop: Phenolic Resin Surfaces made of cost effective High Pressure Phenolic Resin composite are resistant to chemical stain and corrosion. Non-porous and non-conductive, it's strong durable qualities enable it to withstand high impact and shock. It is easily cleaned with soap and warm water.
Constant air volume principle Conventional hood: This term is used to describe a constant air volume (CAV) hood, an older, traditinally less elaborate hood design used for general protection of the laboratory worker. Because the amount elaborate hood design used for general protection of the laboratory worker. Because the amount of exhausted air is constant, the face velocity of a CAV hood is inversely proportional to the sash height. That is, the lower the sash, the higher the face velocity. CAV hoods can be installed with or without a bypass provision which is an additional opening for air supply into the hood.
Cold-Rolled Steel (Painted) benchtop fume hoods
Benchtop fume hoods
CAV exhaust system (Constant air volume)
Inclined flow fan (The installation principle is the same as air conditioning)
Exhaust air rate
PVC material, FPR, PP or other
(Single-phase) 220V/50HZ or (Three-phase) 380V/50HZ
Manual or electric
Average wind speed
12.7/16/19/mm thickness of Phenolic resin (Other: Epoxy resin, Ceramic etc)
Using HPL physiochemical board to make for lining plate and the flow guide plate
1.0mm thick cold-rolled steel with 75μm epoxy resin powder coating, most chemical resistant