Scrubbers Pollutants from an industrial process may sometimes be toxic or otherwise harmful to people and the environment. Gas scrubbers are designed to remove water-soluble pollutants from air streams by absorbing the pollutants into circulating water which possibly also contains various chemical additives that improve the collecting efficiency. The scrubbers are made of various plastic materials selected to suit the corrosiveness conditions and the thermal loading. A vertical scrubber ( to the right ) made of PE to remove different acids such as formic acid, hydrochloric acid and sulphuric acid from the air stream. Neutralization by caustic liquor.   DSS Fume extraction cabinet scrubber CorroClean® DSS is designed for low rates of air flow i.e. up to 1500 m3/h, and incorporates a droplet eliminator. It is designed for connection to fume extraction cabinets and workbenches used for work on chemicals. Made of PVC or PP. Chemicals are widely used in schools, institutions, hospitals, laboratories and industry, and the vapours and fumes emitted must be extracted from the workplace. The task of the wet scrubber is to prevent the emission of pollutants to the outdoor environment.