Ventilating air purification with the ABU is based on two natural processes:
Harmful substances are trapped in the scrubber with the help of a water absorbent and then they are neutralized (oxidized to CO2 and H2O) in the bioreactor.
The solution circulates in a closed «scrubber-bioreactor» cycle which prevents any industrial drains into the sewer system. Purified air is discharged into the atmosphere.
The microorganisms used in the ABU are derived from natural sources and as a result they are both non-toxic and non-pathogenic. The microorganisms have also passed a toxicological evaluation.