From the comparison of water purification effect, ultrafiltration
The hardness of water in different areas is different, and the content of calcium and magnesium ions in water in northern areas is high, which is easy to scale. Therefore, it is necessary to buy a filter water purifier with an ion exchange resin filter. For areas with chlorine in water and heavy taste, you can buy water purifiers with more activated carbon; For families with serious pollution and direct drinking, you can buy reverse osmosis.
"Four Points for Attention" in the Selection and Installation of Water Purifier
First, pay attention to whether there are enough installation locations.
Water purifier is a product closely related to home decoration, mainly installed in the kitchen. The height, thickness and width of the fuselage and the height of the kitchen closet should also be considered when purchasing. If consumers buy a bucket water purifier, there are still problems such as water and electricity connection. Therefore, consumers should consider the safety of water and electricity connection in advance when decorating their homes to ensure that there will be no danger of water leakage and electricity running after the water purifier is installed in place.
Second, pay attention to the choice of products with health permit documents.
Water purifier is a wading product. Before listing, each product must be appraised by the book supervision department to ensure that the effluent quality and related quality meet the national standards and norms, and can only be listed and sold after obtaining the hygiene license issued by the Provincial Health Department.
Because the water purification industry is not standardized, some small enterprises sell illegally in order to save costs without obtaining the approval of hygiene license or many products have applied for hygiene approval. Here, when purchasing a water purifier, consumers should pay attention to check whether the product has a hygiene license, and consumers can also check the hygiene license through the website of the National Health Planning Commission.
Third, pay attention to choosing brands with good after-sales service.
The water purifier is complicated to install and is a wading product. Installing or replacing the filter element by itself has potential safety hazards and is not suitable for users to install it by themselves. When consumers buy water purifiers, they should also consider whether manufacturers and merchants have the service ability of on-site installation. At the same time, the filter element of the water purifier needs to be replaced after a period of use, which is a product that needs long-term after-sales service. When purchasing, we should consider whether manufacturers and merchants have stable and high-quality after-sales service in the local area.
For the above contents, please refer to People's Daily Online-Home Water Purifier and People's Daily Online-Home Lecture Hall: "Four Points for Attention" in the Purchase and Installation of Water Purifier.