Why Is a Water Purifier Worth Buying?

Why Is a Water Purifier Worth Buying?
When I was a child, I always thought that water and air were free, a gift from nature to us.

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When I was a child, I always thought that water and air were free, a gift from nature to us.

But, after growing up, the air quality became worse and worse. Water pollution is endless. People’s requirements for drinking water also began to become higher, and more and more misconceptions.

What kind of water is suitable for our body? What type of water is good for the human body?

Here, let us unlock the “secret” of water one by one.

Why Is a Water Purifier Worth Buying?


The most used tap water in life, can I drink it directly?

A faucet that has not been turned on for a long time, red and black impurities come out once it is open. Including rust, sand, and even green algae and bloodworms. Why is the water that meets the standards after being purified by the water plant is so dirty? Because the tap water is easily affected by the water during transportation. Secondary pollution causes water quality to be polluted again. The ageing of pipelines and water storage tanks will produce metal corrosion. It is causing water to change colour and taste, and the re-proliferation of microorganisms.

Substances harmful to the human body probably include:

  • large particles of impurities, 
  • bacteria, viruses, 
  • antibiotics, 
  • heavy metals, 
  • inorganic substances, 
  • organic substances, etc. 

Long-term drinking of heavily polluted water can cause many problems. It ranges from 

  • weakness, 
  • memory loss, 
  • muscle pain, 
  • dizziness and headache, 
  • kidneys,
  • central nervous system.

Do you dare to drink such water directly? Since tap water cannot be drunk directly, you can always drink it after receiving clear and transparent water in a kettle and boil it?


Can I drink the clear and transparent water after boiling it?

We often think that clear and transparent water is safe. Still, there are invisible pollutants in the water also to visible impurities. Boiling the water does not ensure safety. First of all, boiling water can quickly kill disease-causing bacteria. Still, it cannot solve the problem of algae substances, chemical compounds and other harmful substances. Secondly, the dead bacteria and germs killed by the high temperature still remain in the water. Can you drink such water with confidence? The boiling water is not at ease.

What kind of water is right to drink? The water filter in life can help you find the answer.


How does the water filter these harmful substances?

The size of impurities in the water:

  • Bacteria: 0.4 ~ 5 microns; 
  • Virus: 0.01-0.1 microns; 
  • Antibiotics: 0.001-0.01 microns; 
  • Heavy metals: 0.0005-0.005 microns; 
  • Inorganic matter: 0.0002-0.0005 microns; 
  • Organic matter: molecular weight>100.

Water filters are generally filtered by physical interception, adsorption and other methods. Common core filtration membranes are: 

  • ultrafiltration membrane (filtration pore size 0.01 micron), 
  • nanofiltration membrane (filtration pore size 1 to 2 nanometers),
  • RO reverse osmosis membrane (0.0001 microns)

The higher the filtration accuracy, the purer the filtered water will be.


Various water purification technologies help healthy drinking water

Take a water filter with five filter elements for example:
1. The first level: PP cotton
Preliminary filtration can remove coarser particles, sludge, colloids, suspended substances, etc.
2. The second level: Granular activated carbon
Absorb peculiar smell, colour, organic matter and some heavy metals in water;
3. The third level: carbon rod activated carbon
Further remove chlorine, organic compounds, colour, odour, turbidity, etc.;
4. The fourth level: RO reverse osmosis membrane
The pore size is 0.1 nanometers. Which can remove bacteria, viruses, heavy metals, and other organic impurities in the water;
5. The fifth level: rear activated carbon
Adjust the PH value of the effluent and improve the taste.


How to distinguish between good and bad water filters?


The water filtered by the high-end filter element is like distilled water. But it needs to be adjusted to a more comfortable taste, comfortable and clear.

Water flow (flux)

Also to taste, there is also water flow (flux). The greater the water flow, the greater the water flow, and the faster it takes to receive a glass of water. The water output is so small that I can’t receive a glass of water for a long time, and the slow speed is also torturing.

But the greater the water purification flow is not equal to the better. When choosing a water filter, compare the water purification flow and rated flow, to choose a high-performance water filter.

Waste water rate

water filters can generally achieve a 1:1 or 1:3 wastewater ratio, and good water filters have a higher wastewater ratio.

Water-saving is an important indicator for purchasing reverse osmosis water filters. The water filters with level 1 and leading value are the best. Otherwise, you will buy a veritable “wastewater machine”.

Thus, cheap water filters are not only inadequate in taste, but also torture to use. The first step is to let go of the faucet; the second step is to wait for clean water to come out, and fetch the small water stream slowly. One minute has passed since you finished receiving this glass of water. Thus, if you want to open the tap, you can drink it. The flux is large, and the water is fast.


How to choose a water filter?

1. I recommend that 

For tap water with heavy chlorine, different colours, odours and high organic content, 

to choose household water filters with a large amount of activated carbon;

2. For tap water in urban and rural areas, please choose filters with dual functions of coarse filtration and fine filtration.

3. For serious water pollution, it must completely filter out any impurities in the water. If you do not need to heat it for direct drinking, you can choose a reverse osmosis pure water machine.

Besides, when we buy a water filter, we must also pay attention to 

  • a service guarantee, 
  • sanitation license, 
  • 3C certification, 
  • Product quality insurance, etc.


Sum up

When the household tap water is not safe enough, a water purifier is a good choice. The other option is bottled water. Of course, the latter will cost more in the long run. For detailed information on the production of bottled water, please click here.



Please click below to watch the production process of bottled water production.

John Lau.

John Lau.

John Lau, a project manager holding an engineering bachelor's degree, became fascinated with optimizing beverage production equipment during his university days. As an overseas project manager, he firmly believes that educating clients on achieving efficient workflows through customized equipment design is one of the most impactful aspects of his job.

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