1、 Look at principles and materials

Filter is mainly through the principle of activated carbon to filter out macromolecular harmful substances in water, but for viruses, bacteria and heavy metals still can not be removed, the water after filter is usually used for industrial production or other commercial purposes.

In contrast, the water purifier is a high-tech product. The special feature of this water purification technology is that it is composed of a polymer permeable membrane with a pore size of only 0.0001 micron. Under the action of water pressure, water molecules pass through the membrane smoothly, while harmful substances such as microorganisms, heavy metals and viruses are blocked out. Through this world's * advanced water purification method, purified water can be directly drunk.

2、 Look at the appearance and structure

Due to its simple principle, the filter is generally only composed of activated carbon and ordinary non-woven filter materials, which can be used without plug-in; while the household water purifier is often composed of a variety of materials, and its water purification function and effect are also good. The water purifier not only contains the materials in the filter, but also has core filter elements: RO reverse osmosis membrane, pressurized solenoid valve, etc., with perfect function and complex structure.

3、 Look at the price and after sales

Most people think about price and after-sales service before deciding to buy. *First of all, consider where to use it? If it is used for washing water or aquaculture water, you can buy a cheap filter, about 100-300; for tea making and direct drinking, you should consider water purifier, the price is about 2000-4000.

Extended data:

The function of the water purifier is to remove the floating objects, heavy metals, bacteria, viruses, residual chlorine, sediment, rust, microorganism, etc. in the water purifier, it has high precision filtration technology, and the domestic water purifier is five stage water purifier filtration technology or six stage water purifier filtration technology.

Five stage filtration technology: ① level is filter element, also known as PPF filter element; the second stage is granular activated carbon (UDF) filter element; the third stage is precision compressed activated carbon (CTO) filter element; the fourth stage is reverse osmosis membrane or ultrafiltration membrane; the fifth stage is post activated carbon (small t33).

After the filtration technology of six-stage water purifier, the primary filtration technology is weak alkaline energy bar (PPF filter element + granular activated carbon + sintered activated carbon + ultrafiltration membrane + Post activated carbon + weakly alkaline energy bar). The water purifier is not only suitable for areas with serious tap water pollution, but also can filter residual chlorine in conventional tap water, and improve the sense of water use.

The filter is an indispensable device on the pipeline conveying medium. It is usually installed in the pressure reducing valve, pressure relief valve, constant water level valve, square filter and other equipment at the import end.

The filter is composed of cylinder, stainless steel filter screen, sewage discharge part, transmission device and electrical control part. After the water to be treated passes through the filter cartridge of the filter screen, its impurities are blocked. When it is necessary to clean, the detachable filter cartridge can be taken out, treated and re installed. Therefore, the use and maintenance * is convenient.