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Laminar Flow Box with acid-resistant extraction system

Laminar Flow Box with an additional acid-resistant extraction system for gases and vapours

The EFBS series laminar flow box also features an additional acid-resistant extraction system. The telescoping extraction arm, which can be positioned in three dimensions, can be adjusted precisely so that gases and vapours are extracted exactly where they are generated.

There is practically no mixing of the vapours being extracted with the clean air flowing down from above, since the flow velocity at the tip of the extraction tube is higher than that of the clean air flow. The exhaust system has a maximum capacity of 1 cubic meter per minute and is continuously adjustable.

The EFBS series devices are used where clean room conditions are required, but where these conditions are at the same time impaired by vapours, combustion gases, etc., e.g. AAS graphite tubes, ICP/MS, and laboratory benches used for chemical analysis.


Control panel    


The flow velocity can be controlled in 8 steps. The controls include the “night reduction” (eco) mode to save energy costs, and the “MAX” function to clean the workstation, parts, or equipment if applicable.

  • 8 level adjustment of the flow velocity with night reduction and flushing function
  • LCD display with selected flow velocity in m/second
  • Automatic flow adjustment with filter replacement indicator (optional)
  • LED fault indicator
  • Interior light switch on the control panel (optional)
  • Service and interval indicator, dependent on the usage period



Telescoping arm for the extraction system.

Arm with three-dimensional position adjustment for connection to the acid-resistant extraction system. Only available in combination with the EFBS, EFBS-V and EBS series.



Name Filter dim. in mm Kg
Laminar flow box EFBS 37 610 x 610 85
Laminar flow box EFBS 56 915 x 610 96
Laminar flow box EFBS 75 1220 x 610 100
Laminar flow box EFBS 93 1525 x 610 137
Laminar flow box EFBS 112 1830 x 610 152

* Special version

Drawing and technical information about Laminar Flow Box EFBS series with an additional acid-resistant extraction system