1. Focus only on the health of drinking water and ignore other domestic water
Of course, the main way for the body to get water is through drinking. But, do you know? A lot of research has found that some of the harmful substances in the water are absorbed into the body through the skin. When you take a bath, wash, brush your teeth, wash your face, you still can't escape the water pollution.
2, water must not only be clean, but also have the minerals the body needs
Usually people have an understanding that we must use the minerals contained in the water to maintain health, but is it really true?
In fact, there is currently no water purification equipment that can remove harmful substances in the water so accurately, and only retain substances that are beneficial to the human body. Most of the bottled mineral water on the market is also added with several mineral elements in pure water. The minerals required by the human body vary from person to person, and the amount of people in different regions is also very different. It is difficult to give a clear standard. What's more, the nutrients in the water are completely available in the diet. For example, drinking a bite of milk to supplement calcium is much higher than drinking a few tons of water.
3, that the quality of tap water has been tested by the state, the tap water in the home is clean.
The tap water is of course up to the national water quality department's testing standards. However, when the water passes through the old municipal pipe network and the residential water tower, when it arrives at home, the quality is not guaranteed.
4, tap water may not be clean, there should be no problem after boiling.
Boiling water can only kill some microorganisms and bacteria in tap water. However, other residues such as residual chlorine, secondary pollution, floating and heavy metals, etc. cannot be removed, and it is harmful to human health after drinking. In particular, the scale in the north is severe, and there are many microorganisms and bacteria in the south.
5. Since the tap water is not clean, you can drink the bottled water.
The current quality problems of bottled water are frequent, and the secondary pollution problem of bottled water is severe. In addition, the cleaning of the water dispenser is not timely, and it is easy to cause bacterial microbial growth.
6, since you want to buy a water purifier, you must buy imported
Buying imported water purifiers must be the best? Because the water quality in Western countries is generally good, the purchase of water purifiers by households is more common, but most foreign water purifiers can not filter the water quality of China. of.
7, the more water purifier filter, the better
The filter element is not the more the better, some parts of the water purification products, moving 5 to 6 filter elements, but the use of simple and inferior filter materials, the filtration effect may not be as strong as a high-performance filter. Excessive filter elements increase the cost of replacement. Therefore, the number of filtration stages is not necessarily as high as possible, and should be reasonably selected for the water quality of the home area.
8, the lower the TDS value, the better the water quality
TDS (Total Dissolved Solids), translated into Chinese as soluble total solids, shows how many milligrams of total dissolved solids are dissolved in one liter of water. TDS can only detect conductive substances in water, but can not detect bacteria, viruses and other substances. It is not advisable to rely solely on the TDS water quality test to determine whether water quality can be drunk. In addition to TDS testing, formal water quality testing requires professional testing in biochemical laboratories.
9. Rural water quality is better than city
This may be the case for some areas that are far from industrial areas and where industrialization is not common. However, the drinking water quality in most rural areas in China is worse than that of cities. The reason comes from agricultural pollution, lack of comprehensive and professional water quality testing in rural water sources, and rural water quality is difficult to guarantee. Therefore, rural areas may need more water purification equipment than cities.
10, the water purification equipment filtration method is actually much the same
Nowadays, various water purifiers are emerging on the market, but the filtering methods are not the same.
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