Is there a big difference between softened water equipment and pre-filter? I don't know much about this. who can help me introduce it, thank you, there is more water Rust at home, I don't know which kind of application to install. The front filter is mainly to filter the sediment, rust and large particles in tap water. Prevent a large number of precipitated impurities generated in the urban and residential water supply network from causing harm to the human body, it also plays an active role in pre-protection of dark compress pipes, faucets, plumbing, water heaters, boilers, central air conditioners, washing machines, dishwashers, coffee machines and other water appliances (water purification machines, pure water machines, water softens.The water softener, mainly through the sodium ion in the resin, replaces the main components of calcium and magnesium ions (forming scale) in the water and binds them to the resin, thus greatly reducing the calcium and magnesium ions in the water,, soft water is not suitable

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What is the difference between the coarse filter and the efficient filter in the fresh air system? The fresh air system is a new type of environmental protection appliance that keeps the indoor air clean and fresh at all times.This independent indoor air replacement and purification cycle system,Can eliminate indoor air pollution at the same time,Enter natural fresh air,The fresh air in the input room is first filtered, sterilized, heated, and added oxygen.The fresh air exchange machine is mainly composed of heat exchange system, power system, filtration system, control system, noise reduction system and box body.The product adopts DC brushless inverter motor,It has the features of saving electricity, intelligent control, long service life and ultra-low noise.The efficient filter and the coarse filter play a different role in it.The role of efficient filters: efficient filters are installed on the top floor of the fresh air purifier,Outdoor Fresh air is filtered by thick filter, EPIC low temperature plas