Aakar scientific instruments pvt. Ltd is a fast growing indian company which undertakes projects of making quality laboratories which includes lab furniture, fume hoods, fume exhaust system, laboratory faucets, valves, chemical storage cupboards, anti vibration tables, slotted angle racks, dress cabinets, lockers, change over benches, [all available in powder coated steel, wooden and ss].
The fume hoods are designed for safety of the personnel working within the lab by maintaining negative pressure inside the hood compared to that within the lab.
Bench mounted fume hood, conventional is operated on constant volume principle. In this model, most of the air enters through the opening of sash. Exhaust volume remains constant. This is very popular and economical model used in general low hazard applications.
Bench mounted fume hood, constant volume by pass air has the same design like the first one but will have slots or louvers on the top front panel. Hence, the air bypasses through the slots as the sash is lowered down or closed. There is a sure intake of air either in closed or open sash position. This redistribution of air prevents high velocity streams inside the hood, which may cause turbulence and compromise chemical fume containment.
The auxiliary air inlet model is the most preferred in the air-conditioned lab. This model permits atmospheric air to create an air curtain in front of the sash opening, which prevents conditioned air to be exhausted to much extent. Thus it economizes the energy consumption.
Walk -in type fume hood is designed to work with the taller assemblies like 20ltr, 50ltr etc. Where scientist walks-in to perform bigger assembly applications. The sash in this model operates horizontally.
