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A few times for the pipeline front filter complex phosphate The front filter uses household drinking water, water purifier or water opener.In order to ensure the hygiene and safety of drinking water (hereinafter referred to as drinking water) and protect human health, according to the relevant provisions of the People's Republic of China infectious disease prevention and control law and the urban water supply regulations, the measures for the supervision and administration of drinking water hygiene stipulate that units and individuals producing products involving drinking water hygiene and safety must apply to the government health administrative department for approval of product hygiene licenses according to regulations, and after obtaining the approval documents, production and sales.No unit or individual shall produce, sell or use the products of the preceding paragraph without approval documents.All imported products involving drinking water hygiene and safety must be approved by the Ministry of H
Is it necessary to install the pre-water purifier? introduction to principle What do you know is the front?Water purifier? The front water purifier is a water purification device, which is a component in the water purifier, usually installed in the water purifier andWater pipeThe front end of the filter can play a role in filtering sediment and rust, and can filter some bacteria and large molecular organic matter. Many people ask whether the front water purifier is used or not, and whether it is necessary to install it. many people have different ideas for this problem. The following small series will introduce you to the installation of the pre-water purifier. First, is it necessary to install the pre-water purifier?Look at personal needs. Two, classification and working principle 1, laminated filterPrinciple: is a thin specific plastic overlay engraved with a large number of micron-sized grooves on both sides, a string of stacks in the same mode? Through the special design of the inner s
