... enhance human body’s immunity.4. The water purifier uses PP, UDF, CTO, RO membrane and T33, removes 99. ... OF PURIFICATION: stagedescriptioncomponentitem NO.functionstage15umPPspun filber 5umPPspunpp-5"-10"remove the particles,dust,mud ectstage2granular carbon filberGAC ... the chlorine,organics,odor,smell,turbidity ectstage3block carbon filbercto-5"-10"remove the chlorine,odor,smell and suspending ...