With the improvement of people's living standard and their awareness of health and environmental protection, water purifier has become a household appliance with a very high utilization rate. The water purified by the water purifier filters out harmful substances in the water, such as rust, silt, heavy metals, bacteria and substances harmful to the human body. After drinking, the water purifier is more healthy and safe to the body. However, the water purifier needs regular replacement of the Water Filter Cartridges just like the car needs refuelling, so as to ensure the purification effect of the water purifier. Then, how to distinguish the life of the water filter cartridges of the water purifier?

At present, most normal water purifier manufacturers will give a reference service life to the water filter cartridges of the water purifier, for example, the service life of ultrafiltration membrane is generally 24-36 months; The service life of reverse osmosis (RO) membrane is generally about 18-24 months. The service life of absorbent water filter cartridges is generally about half a year to about one year. The service life of non-sewage filter water filter cartridges, such as PP cotton, is generally about 3-6 months. However, the water quality in our country is relatively messy, and the water quality in each region is very different. Therefore, the reference value of the service life is generally to judge the service life of the water filter cartridges of the water purifier according to the water quality status, water consumption, normal protection status and installation environment of the water purifier. There are also some water purifier manufacturers that make the judgment based on the actual water output of the water purifier. Generally, this method is also the result of detection in the urban tap water environment. Of course, these theories do not represent the service life of the water filter cartridges of the water purifier in practical life. The service life of the water filter cartridges is also closely related to maintenance.