... is 1.5-3 times that of a general piece ceramic filter element.2)Apertures are evenly laid with a high filter ... with clear water or repeated washingFunction: purification and anti-bacterium1) Ceramic filters out dust, rust, cyst, cryptosporidium and guardian, particle and ... scouring pad under running water. As the top layer of ceramic and contaminants are brushed off, a new layer becomes available ...