1 Select a brand. The best choice should be professional brands with international cooperation background, because professional brands with international cooperation background have international progressiveness technology and domestic adaptability.

2. Check whether there is a health permit. Regular water purifiers have relevant production licenses and various certification qualifications.

3. Depending on the type of central machine, it is necessary to combine the actual situation of local water quality. Surface water is mainly used in the south, mainly to remove sediment, microorganisms, bacteria and organics. The central water purifier with ultrafiltration membrane filter element can be referred to, while groundwater is mainly used in the north. For more attention to scale removal, the central water purifier with quartz sand, activated carbon and KDF filter material can be referred to.

4. Check the service life and after-sales service of filter element

Many filter elements of the water purifier have a service life and need to be replaced regularly, otherwise, the water purifier will become a 'sewage filter'. On the premise that consumers are unfamiliar with the water appliance products, the service capacity, service attitude, and service system of manufacturers, dealers, and distribution agencies will determine consumers' long-term consumption quality of water appliances. Mature distribution agencies will grasp the installation link, It can basically avoid one of the three major disadvantages of the water purifier industry: leakage. When property losses occur, we can go back to the theory. During this period, we will naturally encounter wrangling. Even if we win the lawsuit, it will lose its skin. The other two problems are stink and congestion, which can also be solved in a timely and effective manner at the server. As far as water appliances are concerned, after-sales service is actually a cornerstone of the industry development and consumption experience. When consumers decide to purchase, they must examine the after-sales strength of the seller from multiple perspectives. Don't let the water purifier they buy become an 'orphan machine' in the future, with no one asking and no tears. It should be noted that domestic water purification is actually a 'whole house water purification treatment system' and a systematic water purification solution. If you choose a good brand and responsible distribution agency, you can obtain the 'whole house water purification solution' with the highest cost performance.