Activated carbon have porous surface which absorbs organic, chemical, and all other microorganism. Carbon is also effective to remove taste and odour. Activated carbon filtering is a method of water filtering, water is passed thru activated carbon bed. KKE makes water cleaning filters with activated carbon filtering. Activated carbon filters are generally employed in the process of removing organic compounds and/or extracting free chlorine from water.

In vehicle cleaning scenario, it is used to remove Organic compounds which primarily causes odour in the water due to bacteria infestation. The system looks similar to the Multimedia filter since the sizing of the vessel is same for multimedia and activated carbon filter for vehicle wash system water.