The active carbon particles forming the carbon bed, have great amount of pores and large surface, with great absorbing power. Water flows through the carbon bed, with organic matter absorbed effectively by the active carbon. The amorphous substance on the surface of the active carbon has oxygen -containing group, which effectively absorbs organic pollution material from the water flowing through the carbon bed. They remove off-taste and odor from your water - caused by chlorine, solvent, and others. Carbon filters can also remove levels of lead, mercury, VOC's, and many other harmful compounds.