The Wet Air Scrubber is one specific type of air scrubber which has spray chambers which combine the capture techniques of cyclones and spray towers. The gas streams enter into the chamber tangentially at high speeds. The high speeds will induce a cyclonic action, and the centrifugal force from this promotes droplet separation, allowing the use of a smaller droplet size which increases collection efficiency.

We at Kleanfil International makes scrubbers which are more efficient than spray towers and have lower liquid requirements. But at the same time, they will also require more power due to higher pressure drops. They are preferred over spray towers for gas streams with heavier particulate loads.