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How to select the water purification equipment for pre-filtration, ultra-filtration and RO? It is recommended to use a soft machine to reduce the scale, and the softening resin in the soft machine is used to reduce the hardness of the water. At the same time, it depends on the needs of users. if you simply rely on a soft water machine, you can't reach the direct drinking standard.
What are the classification of air purifier working principle? The working principle of air purifier is relatively simple,Is the filter fan,The indoor dirty air is sucked into a closed air purifier,Filter the impurities in the air through a layer of filter,Leaving clean air back into the room,So cycle a few times,Know that the air is clean.At present, the form of air purification is roughly divided into three categories: Passive filtering (filter filtering,Such as olive air purifier), active filtration (ion filtration,Such as the Bayon air purifier) and the filtration of the two compound (such as sharp net ion group ).Filter type.Such air purifiers use porous filter materials,Trap and collect particles suspended in the air.It usually uses HEPA filter or activated carbon filter,Can filter small particles,The role of absorbing harmful gases such as formaldehyde, benzene and ammonia.If the indoor air is not particularly dirty,Use 6-per average day-8 hours,The service life of activated carbon is only about