A water purifier is a water filtering device, but unlike other coarse filtration systems such as water filters, tanks, or cups, the product for the output water is absolutely pure and can be consumed directly without the need for further heat treatment.

What is a water purifier?

Why use a water purifier?

The process of industrialization, modernization is accompanied by significant changes to the living environment. In which, underground and surface water sources are becoming increasingly polluted. Water pollution not only causes aesthetic problems, but it also affects the development of many sources of life on earth. Humans are no exception. Therefore, using a water purifier in life is essential for good health.

The current situation of domestic water sources

Tap water:

– Excess chlorine levels in water will cause many diseases and create an unpleasant odor for water

– The water will be highly hard (lime) deposited in the body, which can cause kidney stones and many other diseases

– May contain levels of metals or arsenic exceeding the limit

Well water:

– The iron and manganese content will create a yellow color and a smelly taste affecting the living process

– Arsenic pollution (thach tin) will be present in most groundwater sources in northern provinces

– Solid substances, and dissolved substances in water

– Heavy metal content will be in groundwater that can cause serious diseases

– Bacteria existing in water causing intestinal diseases.

So if I boil the water, do I need to use a water purifier? Boiling water before drinking is a common method of water treatment in Vietnam. However, boiling water can partly treat bacteria but cannot completely eliminate them, especially boiling water cannot treat chemicals, heavy metals, and acid content in water.

If you do not use a water purifier, the water may still contain bacteria that cause diseases, chemicals, heavy metals… long-term use will have a negative impact on human health. Polluted water can cause diarrhea, poisoning, skin diseases, diseases of the liver, kidneys, blood, especially cancer.

Using a water purifier will have the following effects:

– Completely remove the content and composition of harmful substances in the water, returning the cleanest pure water source.

– Completely remove the unpleasant odor in the water.

– Supplement the necessary minerals for human health: potassium, magnesium, calcium, etc.

– Save costs by not having to buy bottled filtered water for use in the family.

– Serve daily activities of the family from supplying water for drinking, cooking to other activities.

Should I buy an RO or Nano water purifier?

Experience buying and using water purifiers

Regarding quality, as we analyzed above, it is clear that Nano water purifiers are much better in quality. However, the cost is quite high and requires a clean water source, so it will not be suitable for our water conditions?

  • RO filtration technology

RO water filtration technology was born in 1870, using RO filters (super small filters) to filter bacteria, impurities, heavy metals, chemicals… Water purifiers with this technology produce completely pure water based on the principle of reverse osmosis, abbreviated as RO.

Detailed structure of the RO water filter membrane

The RO filter membrane is made up of super small membrane holes, only about 1/10,000 the size of a hair (approximately 0.001 micrometers). It only allows water molecules to pass through while pushing out 99.99% of other impurities (including beneficial and harmful impurities). Therefore, the RO technology using this filter membrane will produce completely pure water (without any substances other than water), especially without minerals.

  • Nano filtration technology

Nano technology was born in Russia in the early 21st century, it is one of the most advanced water filtration technologies today. Unlike RO, Nano uses filters with larger holes (voids), with a size of about 0.01 – 0.001 micrometers.

However, the Nano filter membrane still has the ability to remove bacteria and harmful substances in water. Especi

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