Ductless fume hood is a laboratory ventilation equipment without external ventilation ducts. It purifies harmful gases and particles from experiments via the built-in air filtration system for local ventilation and environmental protection. When such substances are generated in the experiment, the fan makes the air circulate inside the cabinet. The air is sucked into the filter unit and then returned to the indoor environment for purification.
WORKING PRINCIPLE

ADVANTAGE AND DISADVANTAGE
ADVANTAGES:
Flexible installation. It is not restricted by the ventilation duct layout and is suitable for laboratories with limited space or where it is difficult to lay ducts.
Space-saving and cost-reducing. There is no need to reserve duct space or carry out complex installation projects, and sometimes the price is more favorable.
Easy to move and beneficial for rearrangement. It facilitates equipment management and adapts to diverse experimental requirements.
DISADVANTAGES:
Limited filtration. In the face of high-concentration and complex harmful substances, purification is incomplete.
Filters need to be replaced regularly. The maintenance workload is large. If not replaced in time, there is a risk of leakage and the cost is high.
SPECIFICATION
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MODEL |
VBDFH-800 |
VBDFH-1000 |
VBDFH-1275 |
VBDFH-1600 |
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VBDFH SERIES EXTERNAL DIMENSIONS (W*D*H)MM |
800*620*1245 |
1000*620*1245 |
1275*620*1245 |
1600*620*1245 |
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INTERNAL DIMENSIONS (W*D*H)MM |
781*570*934 |
981*570*934 |
1256*570*934 |
1581*570*934 |
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AIR VELOCITY |
0.4-0.6m/s |
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EXHAUST AIR VOLUME |
230m³/h |
230m³/h |
690m³/h |
690m³/h |
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VOLTAGE |
110V-240V |
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FREQUENCY |
50-60HZ |
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MAXIMUM CURRENT |
2A |
2A |
5A |
5A |
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POWER |
42W |
42W |
126W |
126W |
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NOISE |
40-52dB |
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MOLECULAR FILTER SIZE/QUANTITY |
370*395*50mm |
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4 |
4 |
6 |
6 |
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INITIAL EFFECT FILTER |
1 block |
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FAN QUANTITY |
1 |
1 |
3 |
3 |
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STANDARD CONFIGURATION |
Epoxy countertop: 1 block Lighting: LED lighting 1 Display: seven-inch LCD touch screen Control system: 1 set Filter saturation alarm system: 1 set Temperature and humidity alarm system: 1 set Power cord: 1 |
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OPTIONAL FILTER TYPE |
SFGL OG: Organic Filter SFGL AG: Inorganic filter SFGL FO: formaldehyde filter SFGL AM: Ammonia filter HEPA H14: HEPA filter |
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