These filters comprise of a pressure vessel containing activated carbon granules as filter media. The porous media having large surface area helps in absorption of dissolved organic matter on to the surface. It removes bad odor of water.

One of the most common applications for activated carbon filters is the reduction of the undesirable tastes and odors present in many chlorinated water supplies. The end product is clean, fresh water with no objectionable taste or odor characteristics. Carbon Backwash Filters are effective in a wide range of applications ranging from pre-treatment for other water purification systems to use as individual treatment equipment for the removal of specific impurities.