Is there instruction manual for silicone pet brush ?
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Is it necessary to install the water purifier according to the front water purifier? In general, it is best to install. this is the first layer of protective leaves. it is the most basic filtration. unless the quality of municipal water can be guaranteed, it is basically impossible in China, the installation of the front water purifier has a long life and high cost performance. It can protect and extend the life of PP cotton or other first-class filter elements of the terminal water purifier. The better pre-filter water purifier will basically filter out the water quality much better. for example, the type of pre-filter with the Ryder West level can basically put most of the water impurities (such as rust, aquatic animals and plants, residue, etc.) is filtered out in the first line of defense, which is the first barrier protection for domestic water. It is also the most important one.
'Jiuyang' and other water purifiers exceed the standard, how to choose water purifiers? 1. in line with the provisions of the measures for the supervision and administration of drinking water hygiene.2. obtain the health permit of the superior health supervision department.3. after being identified by the Technical Supervision Department,In line with the national water quality standards for drinking water.1. the first generation of water purifiers is mainly filtered through activated carbon and ceramics,Easy to breed bacteria,Polluted water sources,The effect of clean water source is not achieved.2. the second generation water purifier uses various artificial polymer membrane filtration,It has a significant effect on removing harmful substances in water,But its fatal flaw is to filter out trace elements that are good for the body.3. the third generation of water purifiers uses nano-ceramic filter technology,Well solved the defect of the second generation water purif