AFM is an activated green glass filter material. Its performance exceeds that of quartz and glass sand, filtering about 30% more organic compounds. The AFM is bio-resistant and self-deprecated and therefore does not allow biofilm to form, preventing leyonella. It offers crystalline water, lower chlorine consumption, reduction of chlorination by -products and neutralizing any chlorine odor. The use of AFM maintains the performance of filters steadily high for many years and contributes to saving resources and protect the environment.