Acid & Alkali Resistant Heat Resistant Chemical Laboratory Duct
Fume Hood Explosion Proof Fireproof
1. Product Description
A fume hood (sometimes called a fume cupboard or fume closet) is a
type of local ventilation device that is designed to limit exposure
to hazardous or toxic fumes, vapors or dusts.
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)
Secondary functions of these devices may include explosion
protection, spill containment, and other functions necessary to the
work being done within the device.
2. Product Parameters
|Worktop Size (mm)||1260(W1)*795(D1)*1100(H1)||1560(W1)*795(D1)*1100(H1)|
|Worktop||20+6mm Ceramic||20+6mm Ceramic||12.7mm Solid Physiochemical Board||20+6mm Ceramic||20+6mm Ceramic||12.7mm Solid Physiochemical Board|
|Liner||5mm Ceramic Fibre||5mm Compact Laminate||5mm Compact Laminate||5mm Ceramic Fibre||5mm Compact Laminate||5mm Compact Laminate|
|Diversion Structure||Back Absorption|
|Control System||Touch-Tone Control Panel (LED Screen)|
|Fan Power||Less than 2.8 A|
|Socket Max. Load||5KW|
|Drainage Mode||Natural Fall|
|Storage||Double-Lock, Corrosion-Resistant, Damp-proof, Multi-layer Solid
Wood with Mobile Wheel|
|Application||Indoor No-blast, 0-40 ℃|
|Application Field||Organic Chemical Experiment|
|Face Velocity Control||Manual Control|
|Average Face Velocity||0.3-0.5 m/s Exhaust: 720-1200m³/h||0.3-0.5 m/s Exhaust:900- 1490m³/h|
|Face Velocity Deviation||Less than 10%|
|Average Illumination||Less than 500 Lux|
|Noise||Within 55 dB|
|Exhaust Air||No Residue|
|Safety Test||In Accord with International Standard|
|Resistance||Less than 70Pa|
|Add Air Function||Distinctive Structure (Need Exclusive Add Air System)|
|Air Flow Control Valve||Dia. 250mm Flange Type Anti-Corrosion Control Valve||Dia. 315mm Flange Type Anti-Corrosion Control Valve|
3. More About the Fume Hood
Avoid Common Fume Hood Mistakes
Fume hoods are very effective safety devices when used correctly.
However, no matter how well a fume hood is designed, it won't be
effective unless proper laboratory safety measures are taken.
Common mistakes when using a fume hood can be detrimental to the
user's personal safety and the safety of everyone else around them.
Storing chemicals in the hood
It's okay to have chemicals inside the fume hood when it is in use,
but fume hoods are not designed to store chemicals for long periods
Items kept in the hood can interfere with the airflow, which can
cause turbulence within the hood and cause contaminants to spill
out of the hood into the room. The airflow provided by a fume hood
is much higher than needed for the storage of closed containers.
Therefore, storing materials in the hood is just a very expensive
misuse of equipment.
Chemicals should instead be stored in an approved safety cabinet.
Unlike a fume hood, flammable storage cabinets are designed to
store chemicals and offer protection from fires occurring outside
the hood in the laboratory.
Proper use of a fume hood will ensure the safety of you and those
around you. Take proper measures when using a hood and avoid these
4. Detailed Photos
5. Fume Hood Maintenance
• Hoods should be evaluated by the user before each use to ensure
adequate face velocities and the absence of excessive turbulence.
• In case of exhaust system failure while using a hood, shut off
all services and accessories and lower the sash completely. Leave
the area immediately.
• Fume hoods should be certified, at least annually, to ensure they
are operating safely. Typical tests include face velocity
measurements, smoke tests and tracer gas containment. Tracer gas
containment tests are especially crucial, as studies have shown
that face velocity is not a good predictor of fume hood leakage.
• Laboratory fume hoods are one of the most important used and
abused hazard control devices. We should understand that the
combined use of safety glasses, protective gloves, laboratory
smocks, good safety practices, and laboratory fume hoods are very important elements in protecting us from a potentially hazardous
• Laboratory fume hoods only protect users when they are used
properly and are working correctly. A fume hood is designed to
protect the user and room occupants from exposure to vapors,
aerosols, toxic materials, odorous, and other harmful substances. A
secondary purpose is to serve as a protective shield when working
with potentially explosive or highly reactive materials. This is
accomplished by lowering the hood sash.
6. Project Cases