water filter
Two major technologies in the industry: 1 and reverse osmosis. 2. Ultrafiltration. Reverse osmosis is recognized as the safest and most scientific in the world at present.
Water treatment technology
, through
Reverse osmosis membrane
The water that comes out is basically pure water, that is, only water molecules, so it is the safest, so it is also called reverse osmosis machine.
water filter
. Ultrafiltered
Filtering accuracy
Next to reverse osmosis, it is not pure water because
ultrafiltration membrane
Aperture ratio's reverse osmosis is bigger, so there are manufacturers promoting it.
Ultrafiltration water purifier
It is a water purifier that can retain minerals. In fact, it is easy to avoid weight. Because it is not pure water, there may be bacteria, viruses and chemical pollutants in water with a smaller diameter than ultrafiltration membrane. Of course, there may be some elements that are beneficial to the human body. But in the current water environment, it is difficult to ensure safety. How can you talk about health? So I think the reverse osmosis water purifier is better. In addition to the above two technologies
water purifier
All belong to microfilter, so you can't drink them directly.
At present, the standard configuration of water purifiers in the water purification industry:
The first level:
Pp cotton
Function: Filter large particle pollutants.
The second level:
granular activated carbon
GAC, function: adsorption of chemical pollutants in water.
The third stage: CTO of sintered activated carbon, which is used to further adsorb chemical pollutants in water.
Level 4:
RO reverse osmosis membrane
/Ultrafiltration membrane, function: intercept the first three untreated pollutants.
Grade 5: Post-activated carbon
T33
Function: Improve the taste of purified water/purified water.
private mail
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According to the product characteristics of the water purifier,
ultrafiltration machine
Around 500 yuan,
Reverse osmosis pure water machine
800 yuan is a reasonable price, because the main cost of the water purifier is the filter element that is replaced regularly during use, and the cost of the shell, circuit and other parts of the machine is not very high.