As the name suggests this type of filter is comprised of two parts, ceramic and carbon. This gives it the ability to filter out a wide range of contaminants. Some are also impregnated with silver to further reduce numbers of microorganisms as silver is a powerful antibiotic. These filters usually come as a cartridge that sits under the sink in the kitchen and is plumbed into the water supply and the filtered water is then sent to a counter top tap. A ceramic carbon filter will remove a large amount of contaminants including most bacteria and parasites, cysts, chlorine, some radioactive contaminants, most solvents, pesticides and chemicals as well as some heavy metals. These filters offer very good value for money with filters typically lasting 12 months or even longer in an average household.
Advantages: Relatively low cost, good filter life, effectively removes a large amount of contaminants.
Disadvantages: Some plumbing required, doesn't remove fluoride, some heavy metals, viruses and very small microbes.
This is taken from a website offering comparisons against water fitration units.
Rob
