Is Your Best Choice
What’s activated carbon block water filter? How it works and how to choose among options for your specific needs?
During water filtration, Activated carbon is often the media used to remove contaminants and impurities. Carbon is probably the most efficient absorbent known to man, and it is unique because of its thousand tiny pores that can absorb. The carbon is positively charged to attract negatively charged impurities such as chlorine, chemicals and volatile organic compounds (VOCs).
Most carbon water filters are either made with granular activated carbon (GAC), or powdered block carbon material. Activated carbon water filters are rated by the size of contaminants they remove. These range from around 50 microns down to .5 microns. The smaller the measurement the more effective the filter. A number of different substances are used to make the carbon for these filters, such as bituminous, wood and coconut shell. Of these, coconut shell is the most expensive, but has been found to also be the most effective. It has the ability to remove even the smallest particles of contaminant.
When choosing a carbon water filter, the decision must be made between an activated carbon water filter and a carbon block water filter. Since the activated carbon attracts negatively charged contaminants and the block carbon provides the most effective filter, the water filter should be the activated carbon block water filter. And if you want a cleaner and purer result, find a water filter that is filled with coconut shell charcoal.