- How to choose
The structure of the household water purifier is roughly classified into a coarse filter, an activated carbon adsorption, an ion exchange resin, a hollow fiber, and a reverse osmosis membrane. To purchase an ideal and practical water purifier, consider the following aspects:
1 Buy brand-name products. Users must understand the importance of product quality when purchasing a water purifier. The manufacturer of the water purifier must obtain the sanitation license from the higher-level health supervision department, and be appraised by the technical supervision department, in line with the national “Standard for Drinking Water Quality”.
2 According to water quality purchase.
The water hardness of different regions is different. The high hardness water quality in the north of China and the limestone area in the south have high calcium and magnesium ion content in the water, which is easy to scale. The advanced filter water purifier with ion exchange resin filter should be purchased.
In urban water with chlorine, heavy color and odor, and organic content, you can purchase household water purifiers with more activated carbon. Because activated carbon has a strong adsorption effect on residual chlorine and heterochromatic odor in water, it has obvious removal effect on organic matter.
For tap water purification with turbid water quality in urban and rural areas, household water purifiers with dual functions of coarse filtration and fine filtration should be purchased.
Serious pollution in water requires thorough filtration of bacteria, viruses, odors, pesticides, heavy metals and other impurities in the water. If you do not need to drink it directly, you should purchase a reverse osmosis pure water machine.