Depending on its characteristics, a water filter can remove:
- Suspended particles (such as hair, sand, rust) – Suspended particles can carry bacteria, but can also protect the bacteria from disinfectants such as chlorine or ultraviolet radiation.
- Chlorine and its derivatives (such as chlorinated hydrocarbons) – Chlorine is used to disinfect water. However, it gives the water an unpleasant odor and taste. In addition, depending on the type of hydrocarbons that may be dissolved in the water, the corresponding chlorinated hydrocarbons are produced. Some chlorinated hydrocarbons such as dichloroethane and trichloroethane are suspected of being carcinogenic.
- Dissolved organic compounds (such aσ tannins, humic acids, insecticides, pesticides) – ΟSome compounds are harmless but give the water an unpleasant taste. Insecticides and pesticides are harmful because they are by their nature “poisons” designed to “kill” parasites and insects.
- Microorganisms (such as bacteria, germ cysts) – Bacteria and germs are carriers of diseases from mild to very severe. Inadequate disinfection of water at the source, due to lack of or poor application of chlorine, but also possible presence of bacteria and germs during the passage of water in the pipes can cause diseases to the water user.
- Asbestos fibers – come from old pipes, only inhaled asbestos has been shown to be associated with carcinogenesis. There is no evidence of harm when asbestos is being ingested.
- Lead – comes from old pipes. Even in small quantities it can cause significant health problems such as digestive disorders, brain damage, spinal cord injuries, carcinogenesis, paralysis and miscarriage in women, etc.
What to look for when choosing a water filter:
- The quality of construction materials (type and origin of activated carbon, approved materials of construction -suitable for contact with food)
- Retention of contaminants (suspended solids, chlorine, organic compounds, microorganisms, etc.)
- Pore size (in microns = one thousand times smaller than a millimeter)
- The cost of the spare part
- The cost of the filter
- The service life of the cartridge
- The water flow when it passes through the filter
- The maximum operating pressure but also the tolerance to quick pressure changes
- The guarantee
- The reliability of the manufacturer and the representative that ensure the continuous and effective support
- Certification by national or international organizations
- The technology used