The structure of household water purifier roughly coarse filter, activated carbon adsorption, ion exchange resin, hollow fiber and reverse osmosis membrane and so on. Choose an ideal practical water purifier, should be considered from the following aspects:
One, whether the product health license approval.
Users must recognize the importance of product quality when buying a water purifier. Production of water purifier manufacturers must obtain a higher health supervision department of the health license, after the technical supervision department identification, in line with the national "drinking water quality standards".
Second, the purchase of the right cartridge is crucial.
The first generation of water purifiers mainly through the activated carbon, ceramic and other simple filtration, easy to breed bacteria, pollution of water, can not achieve the effect of clean water; the second generation of water purifiers using a variety of artificial polymer membrane filtration, the removal of harmful substances in the water is effective, but it is a fatal flaw is the filtering out of the body's beneficial trace elements. The third generation of water purifiers using nano-microcrystalline filter technology, a good solution to the defects of the second generation of water purifiers, filtering out harmful substances and heavy metals in the water. So when you choose a water purifier, be sure to ask about the filtration technology used as well as the filter media to see if it meets your needs.
Three, whether the safe and effective sterilization technology.
Now the water purification equipment using two ways to sterilize, one is to add disinfectant, disinfectant can kill some bacteria, but the disinfectant contains trace amounts of chemical ingredients harmful to human health; two is ultraviolet sterilization, ultraviolet sterilization technology is internationally recognized as one of the most effective sterilization technology, because the ultraviolet sterilization safety, high efficiency, can quickly kill almost all bacteria; and the ultraviolet sterilization using the Physical principle of sterilization, without any chemical agent, will not have side effects on the human body.
Four, whether the perfect after-sales service system.
Many consumers buy some brands, can not find the maintenance service phone or maintenance service company's address, this situation, so that consumers are very helpless, but also caused a waste of resources, many water purifiers into the set; water purifiers after-sales service is mainly focused on the replacement of the cartridge, such as cartridges for a long time without replacing the words, it will pollute the water supply, water purifiers will become "sewage ware". ". Choose a water purifier must choose the perfect after-sales service, such as the use of customer service system to track customer information, prompting customers and the company to replace the cartridge and so on.
Fifth, the purchase of high performance-price ratio.
1, the structure of the water purifier is different, the water purification effect is different. Generally speaking, the structure of the first filter water purifier is simple, mainly activated carbon, its filtration capacity is limited, can only be used as coarse filtration, filtered water is best to heat and boil drinking. A filtered water purifier most of the low-grade water purification products, each sold at a dozen dollars to 150 yuan.
2, multi-stage filtration water purifier. This water purifier has two levels of coarse filter and a set of fine filter, and fine filter more hollow fiber cartridge, filtered water can be drunk directly. Multi-stage filtration water purifier belongs to the mid-range water purification products, each priced at 300 yuan to 500 yuan, can be accepted by the working class, the current family use more.
3, UF ultrafiltration nanofiltration membrane water purifier, multi-stage pre-filtration and ultrafiltration membrane composition, can retain most of the bacteria, harmful substances, is currently the most commonly used on the market to separate the most common filtering effect of drinking water purification device, while retaining the beneficial minerals for the human body trace elements, and then the use of KDF and the advantages of activated carbon to effectively inhibit the breeding of bacteria, fungi in the water and the removal of foreign colors, odors, to ensure that the filtration of the filter. The advantages of KDF and activated carbon effectively inhibit the growth of bacteria and fungi in the water and remove foreign color and odor, ensuring that the filtered water can be safer and healthier to use. Moreover, the water production is large and the waste water discharge is small, so it is faster and more convenient to use in the family kitchen without waiting for a longer time. Belongs to the mass consumer goods, according to different requirements of each unit priced from 200 yuan to 5000 yuan.
4, RO reverse osmosis water purifier, is the treatment of rural water and groundwater water purification effect of the most ideal water purification products. It has a three-stage pre-filtration, a reverse osmosis membrane precision filtration and a post-filtration. The filtered water is free of bacteria, viruses, heavy metals, pesticides, organics, minerals and foreign colors and odors, and is a kind of pure water that can be drunk without heating. This type of reverse osmosis water purifier belongs to the high-grade water purification products, each priced between 1,000 yuan and 5,000 yuan.
Six, according to the water quality to buy.
1, different areas of water hardness is different, high hardness of water in northern China and southern limestone areas, the water content of calcium and magnesium ions is high, easy to scale, should purchase advanced filtration with ion exchange resin cartridge water purifier.
2, chlorine in the water, color and odor heavier, more organic content of urban tap water, you can buy activated carbon loaded with more household water purifiers. Because the activated carbon on the water residual chlorine, foreign colors and odors have a strong adsorption effect, the organic matter has a significant removal effect.
3, for urban and rural water quality turbid tap water purification, should purchase coarse filter, fine filter double function of household water purifier. For serious pollution in the water, the requirements of any impurities in the water thoroughly filtered, do not need to be heated directly to drink, should purchase reverse osmosis water purifier.