For protection of personnel and the environment by safe removal and separation of solvent vapours or aromatics with intensive odours liberated during work.
Clean filtered air flows smooth vertically with constant velocity through the whole working area and carries all air-borne contamination arising from the work to the air-intake slot at the back edge of the table. Personnel are protected by an internal air current and an even inflow of air through the front opening which prevents the escape of dangerous substances from the working area. All the air is then drawn into the return air duct through the activated charcoal filters by the quietly running radial ventilator and then directed into the distribution chamber. At the top of the recessed viewing panel a part of the clean air current passing through the cabinet is deflected into the room as exhaust air. The amount of exhaust air is equal to the amount of air taken in through the front of the cabinet. The cycle starts again.
Decisive for the proper functioning of each adsorption filter unit is the retention time of the air in the activated charcoal and the adsorption capacity of the charcoal. Additional loading from the outside air reduces the time of usage.
The adsorption filter units correspond to:
