Why do you need water filtration?

Any chemical, physical, radiological, or biological substance in a drinking water is definde as "contaminant" (Environmental Protection Agency).

Drinking water always has some amount of contaminants, they does not necessarily indicate that the water poses a health risk, but they may be harmful if consumed at certain levels. Here are some categories examples of each:
- Physical contaminants - organic or sediment suspended from soil erosion.
- Most known chemical contaminants are man-made, but in addition to pesticides, salts and metals they also includes toxins produced by bacteria.
- Biological contaminants water organisms, microbes and viruses.
- Radiological contaminants are represented by elements that can emit ionizing radiation: cesium, plutonium and uranium.

We can remove undesirable contaminants by water purification process. The goal is to produce water for human consumption, pharmacological, chemical, medical, and other applications. The most used methods are filtration and distillation; in industrial applications also used flocculation, chlorination, and ultraviolet light radiation.

It is easy to see, why the systems that include the capability to filter chemical impurities, remove bacteria and viruses, prevent scale build-up are so popular. Water filtering and purification make the water cleaner and healthier, reduces chemical impurities, bacteria and viruses amount and even prevent scale build-up in your appliances.

Household water filters help to remove or reduce chlorines, heavy metals, hydrogen sulfide and so on. Bacteria and viruses removing is reserved for water purifiers, but filters inhibit further development of microorganisms. Usually, drinking water supply does not include dangerous amount of microorganisms, but you can use sub-micron post-filters and ultravilolen units to reduce or eliminate bacteria and viruses.

By most definitions, water purification means that water is free from bacterial contaminants and viruses. However, this definition does not include physical and chemical contaminants such as the ones water filters remove. This is why water filtration and water purification systems are often used in conjunction – filter eliminates unwanted chemical contamination and purifier removes biological threats.