What are the functions and hazards of water purifiers?

With the continuous development of modern industry, water pollution is becoming more and more serious. In order to drink clean and healthy water, many people have water purifiers at home. There are many types of water purifiers, such as cartridge water purifiers, pure water machines, ionized water machines, magnetized water machines, central water purifiers, etc. Different water purifiers have different advantages and disadvantages. Here I will introduce to you the functions and hazards of water purifiers.

1. Cartridge water purifier

This type of water purifier uses a filter element structure. Different filter elements can be matched according to different needs. The advantages are that it is relatively cheap and has a higher filtration accuracy (containing ultrafiltration elements). The disadvantage is that the filter element has a relatively short life (for example, the life of PP cotton is 3-5 months, the life of activated carbon is about half a year, and the life of ultrafiltration is 1-2 years), the water output is small, and it is only suitable for drinking.

2. Water purifier

This water purifier uses RO reverse osmosis technology, which first appeared in the aviation industry and was developed to provide drinking water for pilots. Its advantage is high water output accuracy (except water molecules, no matter what substance can pass through). Its disadvantage is that the purified water is too pure and lacks trace elements that are beneficial to the human body. On average, one cup of pure water will produce three cups of waste water, and electricity must be used.

3. Ionized water machine

Through electrolysis, water is split into two types of water: acidic and alkaline. Alkaline water is used for drinking (because the human body has an acidic structure, regular drinking of alkaline water can regulate the acid-base balance and promote metabolism), and acidic water is used for bathing (or for sterilization and disinfection). At the same time, electrolysis is used to change the water's molecular clusters (changing water into small molecular clusters of 6 molecules). This type of water machine was originally used as a medical device and has a certain therapeutic effect on common skin diseases. The disadvantage is the high cost (the ordinary one is about 6,000 yuan), and the acidity and alkalinity of the water also depends on the electrolytic plate, which requires electricity.

4. Magnetized water machine

Advantages: By magnetizing, the molecular clusters of water are changed, making it easier for the human body to absorb. Disadvantages: People with gastrointestinal diseases should use it with caution, because magnetized water can cause certain irritation to the stomach and intestines.

5. Central water purifier

Installing the water purifier on the main water inlet pipe in the home can purify all the water used in the home. The advantages are long filter media life (the shortest is 5 years), easy operation, and a backwash function to extend the filter media life. The disadvantage is that the purification accuracy is not particularly high, and if it is used to treat drinking water, the effect is not particularly good.