Despite the fact that tap water having been filtered, settled, sterilized etc. and meeting the government standards for drinking water, the tap water in daily use is inevitably going through second contamination when it is carried in the pipeline due to the rust on the pipeline or external infiltration, which may bring excessive bacteria, viruses, residual chlorine, organic materials, heavy metal, radioactive substances and other various hazardous substances to the tap water. A water purification device is therefore a device that could filter out all these undesirable substances.
Since access to hygienic drinking water has drawn public attention in recent years, water purification device is widely used in daily life. Various water purification devices purify water depending on filter cartridges; therefore a filter cartridge is the core of water purification devices. There is a need for replacement of the filter cartridge on a regular basis to keep better purifying effect. A high demand for water purification devices keeps increasing in the current market, however a large amount of counterfeiting filter cartridges arise. If the material quality of filter cartridges cannot be guaranteed, the purifying effect will be in adverse as opposed to using an original filter cartridge. The use of such counterfeiting filter cartridge cannot bring desirable purifying effect or meet standards for drinking water; instead, the operational life span of such counterfeiting filter cartridge is short, use of which is adverse to the health of consumers and the reputation of manufacturers.