Mics Shower Filter User's Manual duct Function & Decontamination---Prevent Skin from Aging and Eliminate Secondary Pollution: from Tap Water. chlorine is a strong oxidant which may easily oxidize the skin moderator protein, causing itching and various skin aliments Active carbon & KDF-55 have extraordinary DE-chiorination functions and thus can keep our skin free from chlorination. Working condition. 1.Please check to make store the device is properly installed and not leaking. 2.