Water purifier although the name is a lot, but the main on three categories, a class of pure water (using RO membrane) filtered water is the most clean (like the Huamei Yilan, Qinyuan), but not the benefit of the minerals are gone, like drinking distilled water. The second category is mineral water (using microfiltration, ultrafiltration, nanofiltration membrane) filtration of water to retain minerals, which is divided into whole-house purification system (such as Li-Litre) and the terminal drinking system (such as the love of Wyatt Pool) the third category of soft water, the use of resin exchange to remove calcium and magnesium ions in the water (such as the filter can be Kang, water, water,) suitable for living water.
If you choose a water purifier for drinking water, it is recommended to use a water purifier that retains minerals, preferably foreign brands, because the water purifier standard in our country is just now getting started, but foreign countries are already very mature standards, it can be said that the certification is the most powerful way to test the water purifier. Because even if we open the water purifier to see, in fact, do not know how their filtration effect.
"Pure water because of the presence of no bacteria, such as cooking rice using pure water, within three days, the rice will not stink" ---- This situation can only mean that pure water is acidic water, does not support bacteria. Including face washing and so on, because our skin is an acidic environment, with acidic water has a great benefit to our skin, but drinking water is not the same, we all know that our people are outside the acidic alkaline, because our body fluids are between 7.35-7.45, drink water and drink alkaline water and body fluids are the most similar to the best. The biggest disadvantage of pure water is that the water is acidic, it not only will not give our body to replenish minerals, but will also take away the minerals, which is why people often say, drinking pure water is discharged out of the mineral water. In fact, with pure water, there are two kinds of people must be used, a class of space astronauts, because of the precious water to space, must filter their own urine to reuse, the second category is to have kidney disease, pure water is also known as the "extracorporeal kidneys", because the mineral-containing water is already a burden on the kidneys. In addition to these two kinds of people, most of us drink water is to drink water containing minerals. A normal person gets 15% minerals from water every day.
Now water pollution, many sources of pollution, it is best to be a variety of filter material at the same time, to have a membrane (mainly filter sediment, rust, bacterial carcasses) activated carbon (mainly adsorption of foreign colors and odors, dissolved in the chemical pollution of water) lime inhibitor (inhibit scale generation, while retaining the minerals in the water) KDF (to solve the problem of heavy metals) the product is a vacuum package to avoid cartridge can be cleaned (because the filter cartridge) itself is to filter tap water, think about it know with tap water cleaning, the cartridge is not clean) It is best to have automatic water shut-off function, to ensure that every drop of water in the safe use of the period are clean.