I. Filtering accuracy
According to the filtration accuracy from low to high, the types of water purifiers can be divided into three categories: coarse filtration, ultrafiltration and reverse osmosis.
Coarse filtration water purifier, such as pre-filter, has a filtration accuracy of 40-60 microns, and can intercept large-particle impurities such as sediment, rust, eggs, colloid and algae. Prevent particulate impurities from blocking water pipes and faucets and damaging wading household items; The filtered water cannot be directly drunk.
The filtration accuracy of ultrafiltration water purifier is between 0. 1-0.0 1 micron, and it can filter macromolecules such as colloid and bacteria, but it can't filter out small molecular pollutants such as heavy metals, pesticides and chemical pollutants, so it is suitable for areas with good water quality.
Reverse osmosis membrane, also known as RO membrane, has a filtration accuracy of 0.000 1 micron, which can filter out harmful substances such as sediment, rust, heavy metals, bacteria and viruses, and only allow water molecules to pass through. The filtered water is the purest water and can be directly drunk.
Second, the sewage flow.
The flux of a general water purifier is in the unit of "g" (American gallon, 1G=3.785 liters), that is, 1 day (24 hours) of purified water. The flux of common water purifiers is 75 gallons, 100 gallons, 400 gallons, 600 gallons, etc. According to the different flux, the water outlet speed and flow rate of the water purifier are also different. Generally, the greater the flow rate, the faster the water comes out.
Third, the filter life.
As a wearing part, the filter element has a certain service life. Once it expires, it should be replaced in time to ensure clean water quality. Generally speaking, the greater the rated water purification capacity, the longer the service life of the filter element. However, the replacement cycle of the specific filter element is also different according to the daily clean water quantity of the family and the local water quality.
Fourth, brand selection.
Well-known water purifier brands with strength, such as Angel, have perfect after-sales service, which can give users a better use feeling and after-sales experience and help users solve after-sales problems in time. The filter element of the water purifier belongs to consumables and needs to be replaced regularly. Choosing a powerful brand of water purifier is more conducive to after-sales service such as core replacement and maintenance.
Angel has been deeply involved in the field of water purification for 33 years, participated in the formulation of 14 national and industrial standards, and has 768 patents. He knows more about the water quality in China and develops water purification products that are more suitable for families in China. The appearance of long-acting reverse osmosis membrane has broken the monopoly of foreign reverse osmosis membrane technology. Products sell well in 65 countries, such as the United States and Japan, and have won the choice of 200 million people around the world.
The original long-acting reverse osmosis membrane has a filtration accuracy of 0.000 1 micron, which is one millionth of that of hair, and can effectively remove dissolved salts, colloids, microorganisms and organic substances. From the water. The filtration is more thorough, and the water produced by reverse osmosis and nanofiltration is clean, safe and excellent in taste; It can completely remove water, alkali and scale. For the areas where groundwater is used in the north and west, the water purification effect is very obvious. If the water pollution is serious or the water quality is unclear, it is recommended to buy an angel water purifier, and big brands are more secure.
Angel's long-acting reverse osmosis membrane can be used for up to 5 years, and now it has obtained the top ten innovative patents in the world and six international authoritative certifications. Equipped with space-grade nano-whiskers and activated carbon, nano-whiskers are the only antibacterial materials used in manned space flight. The three-dimensional four-pin structure pierces the cell wall, effectively inhibits the growth of bacteria, is safer than the traditional silver ion antibacterial method, and effectively improves the taste.
Angel has more than 1000+ after-sales service outlets all over the country, and can enjoy seven-star after-sales service experience, door-to-door delivery, free installation service, filter element replacement, maintenance and other perfect after-sales protection, completely solving your worries about buying a household water purifier.