... trifiredamp, bacteria, rust, impurity, sulfureted hydrogen and heavy metal ion, etc.Reduce remnants pesticide contents and other matters ... U, Lead, Hg, NI and chrome and other metal parts to prevent gym, dirty and seaweed and ... If we use the common water, please take off the body after 30 days, swing it and ... it.8. When replace the cartridge, turn off the caps for two ends, press the cartridge out and ...