Gas scrubbers for laboratories

The laboratory exhaust air scrubber in a vertical design,

MAASS laboratory gas scrubber can be connected as an additional unit alongside the fume cupboard. The scrubbing principle, utilising a newly developed bell-shaped base, is characterised by particularly high efficiency with very low water and energy consumption.

The scrubbing principle:

The water, acting as the scrubbing fluid, is distributed across the bell-shaped base by a maintenance-free, low-noise circulation pump. The air extracted by the fume cupboard is passed through this bell-shaped base and, in combination with the washing water, creates a very strong bubbling effect, through which separation efficiencies of up to 96% of pollutants are achieved.

How it works:

The MAASS-type gas scrubber operates fully automatically and is virtually maintenance-free. The laboratory gas scrubber is controlled via a compact programmable logic controller. The filling and topping up of the wash water takes place automatically via a level control system, which also provides start-up and dry-run protection for the pump. The contaminated wash water is discharged via a motorised ball valve with a large, unobstructed cross-section (standard version).

The equipment variants:

The MAASS laboratory exhaust air scrubber is available in several variants:

• Conductivity monitoring
  The electrical conductivity of the water is continuously monitored. The wash water is discharged when a preset limit value is reached.
• pH monitoring
  Discharge occurs when a preset pH value is reached.
• pH control
  The wash water is neutralised using a pH dosing system, so that it can be discharged from the laboratory exhaust air scrubber into the sewage system with a neutral pH.

The results:

The MAASS laboratory exhaust air scrubber achieves above-average pollutant removal rates. This has been confirmed on multiple occasions by an independent, state-accredited institute.