The water purifier of reverse osmosis membrane technology is generally five-layer filtration with an accuracy of 0.000 1 micron, in which the core technology can remove viruses, bacterial heavy metals and nitrite.
Generally, the flow mode of water is from low concentration to high concentration, and once water is pressurized, it will flow from high concentration to low concentration, which is the so-called reverse osmosis principle: because the pore size of RO membrane is one millionth of that of hair (0.000 1 micron), it is invisible to naked eyes, and bacteria and viruses are 5000 times that of it.
Therefore, only water molecules and some mineral ions can pass through (the passing ions are harmless to orientation), and other impurities and heavy metals are discharged from the waste water pipe. This method is used in all processes of seawater desalination and astronaut wastewater recovery and treatment, so RO membrane is also called high-tech "artificial kidney" in vitro. At home and abroad, in medical, military and civil fields, top RO membrane is used for polymer filtration. The water purifier also contains ultrafiltration membrane, which can completely remove bacteria, algae, some viruses and some metal ions.
There is a layer of pp cotton, which is mainly used to filter particles.
There is a softening resin layer to filter the scale.
The final pure drinking water is equivalent to bottled water.
Simply recommend the brand Hanston.
Is an excellent high-tech enterprise integrating R&D, water purifier production and sales. There are many invention patents, appearance patents and utility model patents for water purifiers, and their research and development examples, manufacturing scale and product quality have long been in the vanguard position.
The products sold by Hanston have been approved and tested by the Ministry of Health, and the quality standards are implemented with reference to the nsf standards of the United States. The predecessor should have also engaged in a large number of water purification projects, with its own testing room, laboratory, quality control room and so on. And the after-sales attitude is also very good, and the seller is very honest.
If you are considering starting a purifier, go and see if there are any suitable products.
The above are some suggestions for comprehensive comparison. If it helps you, please give me praise and encouragement.