Packed Wet Scrubbers are designed to remove gaseous or vaporous pollutants from an air exhausted . The process is carried out by putting the contaminated air stream in contact with a washing liquid that absorbs or reacts chemically with pollutants. The purified air is then discharged into the atmosphere and the contaminated washing liquid is disposed of in the environment can be recovered and reused in the original on other processes. In the vertical counter-current design, the gas flows upward while the scrubbing liquid flows downward through banks of sprays. Absorption of the gases occurs in the random packing section of the scrubbers and the scrubbing liquid is introduced into a liquid or spray distribution system. A highly efficient mist separator removes trapped liquids. The purified air is expelled into the atmosphere.