COLASIT exhaust air scrubbers for cleaning aggressive air are available as vertical counter-flow scrubbers or horizontal cross-flow scrubbers. The air flow rates for standard sizes are up to 60,000 m3/h. Our air scrubbers are sized to suit the pollutant and gas concentration and special designs are also an option. Gas-water heat exchangers made of plastic, for heat recovery in industrial ventilation systems, air flow rates up to 150,000 m3/h. Mist eliminators for the separation of pollutants in droplets. Designs are tailored to the required limiting droplet diameter.