LOHOME(TM) Home Kitchen Tap Water Purifier Bamboo Charcoal Penetration Filter Water Cleaner Material: Coconut shell activated carbon, zeolite silicic ions, three layers of PP filter films, non-woven, outer PP plastic. The activated carbon: effectively remove the peculiar smell in the water and different color and harmful substances. The zeolite: remove the residual chlorine, ammonia and other heavy metal impurities. PP mesh piece: intercept visible impurities in water, and parasites. Non-woven: iron slag filtering water pipes and visible impurities.