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Efficient, versatile and durable laboratory fumes neutralization system with active aspiration.

  • Active aspiration of adjustable speed
  • Complete system including condensation, rinsing, neutralization and adsorption
  • Safe operation with acoustic isolation


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Compact Scrubber with active gas aspiration

Our laboratory Scrubber is a comprehensive active gas aspiration system with a compact design that effectively washes and neutralizes gases. The system includes a high-performance Graham-type cooling circuit specifically designed for efficient cooling of gases at high temperatures, a washing solution to capture particles, an acid-base neutralizing solution, and an activated charcoal filter to neutralize particles by adsorption.

The active aspiration system comprises a vacuum pump with simple manual regulation and features acoustic insulation, ensuring quiet operation. The system’s vacuum level is adjustable between 10mBar and 800mBar.

Our Scrubber is the ideal accessory for use in conjunction with our MBC Series Kjeldahl digesters. The connection between both systems is quick and straightforward, thanks to a hose that links the digester’s fumes collector to the Scrubber’s cooling system input. This design ensures smooth and efficient interaction between both pieces of equipment.



Our Scrubber features essential characteristics to ensure efficiency and comfort in your laboratory, such as active aspiration, adjustable vacuum, and acoustic isolation. The active aspiration ensures an efficient capture of gases generated during chemical reactions, while the adjustable vacuum allows for precise process control. The built-in acoustic isolation helps minimize noise during operation, thus enhancing the livability and comfort of your work environment. With our Scrubber, safety meets practicality, ensuring a straightforward and comfortable operation.


Experience the efficiency of consolidating the four key gas neutralization processes into a single device with our Scrubber. This comprehensive system integrates aspiration, condensation, neutralization, and adsorption filtration, offering an efficient method to neutralize fumes produced during chemical reactions and high-temperature digestions. At the same time, it simplifies operation and saves valuable space in your laboratory.



Our Scrubber is the ideal accessory for use in conjunction with our MBC Series Kjeldahl digesters. The connection between both systems is quick and straightforward, thanks to a hose that links the digester's fumes collector to the Scrubber's cooling system input. This design ensures smooth and efficient interaction between both pieces of equipment.


Scrubber operation


The Kjeldahl digestion process employing a block digestion system connected to a Scrubber initiates with the preparation of samples along with their corresponding reagents. Each sample is placed into a tube, which is then positioned within the sample tube rack of the Kjeldahl Digester. This rack is subsequently inserted into the heating block of the Kjeldahl Digester, and the fumes collector is positioned above it.

The subsequent step involves choosing the suitable digestion protocol. After configuring the parameters and starting the program, the Scrubber is turned on, and the digester begins warming the samples, following specified intervals of time and temperature.

During the procedure, heating the samples results in the release of dangerous gases. It is essential, therefore, to effectively capture these vapors and channel them into the Scrubber using a vacuum pump.

In the initial phase of passing through the Scrubber, the gases undergo condensation as they travel through a cooling system. This stage serves as an initial phase of separation, removing suspended vapors and liquids and thus averting any rise in temperature or volume in the next washing phase. Subsequently, the process neutralizes and cleanses acidic or basic vapors, and a final filtration stage using activated carbon granules traps any residual particulates, guaranteeing emissions are both safe and purified.

In the final step, the Kjeldahl Digester allows for the extraction of the digestion tubes rack from the heating block, positioning it on the cooling position on the back support. During this entire procedure, the fume collector is carefully kept in place atop the rack containing the samples, while the Scrubber operates continuously until the samples reach a temperature suitable for safe handling.


Technical data

Maximum vacuum (mBar)
External dimensions (L x D x H mm)
Net weight (Kg)
Power (W)
Voltage* (V)
Frequency (Hz)
*Other voltages and electrical configurations available on request.



Is it possible to control the level of gas absorption in the Scrubber?

Indeed, you can tailor the gas absorption to your needs. The Scrubber is equipped with an adjustable thread on its side, enabling you to fine-tune the absorption intensity as required.

How often should the neutralizing solution be renewed?

It's essential to keep track of the neutralizing solution's condition, especially during Kjeldahl digestions. Make sure to add an indicator, such as Bromothymol blue at a rate of 100mg per 3 liters of the basic neutralizing solution, during preparation. A transition in color from blue to yellow-orange indicates the need to replace the solution.

How can I tell when to change the activated charcoal?

Keep an eye on the color of the activated charcoal; it's typically black but will turn reddish after substantial use. This color alteration is your cue to replace the activated charcoal to ensure optimal performance.

How do I connect the Scrubber with the Kjeldahl Digester?

To establish a connection between the Scrubber and the Kjeldahl Digester, use a black fluorinated tube known for its chemical resistance, this tube is supplied with our equipment. After connecting the two devices, position the Scrubber adjacent to the Kjeldahl Digester and near a water source, as it is necessary to cool the gases generated during the digestion process.

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