Water is the source of life!  People's need for water is second only to oxygen.  If the body does not consume a certain vitamin or mineral, it may continue to live for a few months or live for several years, but if people do not have water, they can only live for a few days.  Water is an important component of human cells, and 70%-80% of the human body is water.  Water is so important to us, is the water we drink every day clean?
The answer is no, in fact, the water we usually drink has a lot of impurities in it.  These impurities contain many particulate matter such as: sediment, rust, algae, suspended solids, microfibers, etc., which are clearly visible to the naked eye.  Drinking such water containing particulate matter for a long time can easily increase the burden on the kidneys.
Followed by microorganisms, such as viruses and pathogenic organisms in our drinking water, such as: Cryptosporidium, Giardia, etc., even if the content is very small, as long as a single pathogen enters the human body, it will be infected.  It is more harmful to the human body than the presence of trace organic pollutants in drinking water.
Finally, there are disinfectants left in our daily drinking tap water. In order to control the bacteria content in the water, the water plant will add disinfectant to the water.  The most commonly used disinfectant is chlorine, which, when added to water, produces residual chlorine, a highly oxidizing compound.  The surface of the human skin is covered with pores and sweat glands. At the moment of contact with tap water, residual chlorine can easily enter the body through these tiny pores and be absorbed by the body.  The carcinogenic rate will increase by 30% in the middle age.
However, these only refer to ordinary natural water, and do not include heavily polluted water.
Therefore, there are so many impurities and harmful substances in the water we usually drink. These substances are easily absorbed by our bodies, such as: stones, high blood pressure, lead poisoning, dysentery,  Typhoid fever, hepatitis, etc.  This shows how great the impact of drinking unsafe water on health.  Therefore, we need professional water purification equipment to protect our healthy life.