How does the activated carbon-block filter work?
A. Most health-related contaminants (pesticides and their by-products, VOCs, THMs) contain carbon molecules, and carbon molecules tend to bond together. So contaminants in tap water will tend to bond with the carbon block filter. We “activate” the carbon through a special heat process that creates thousands of pores. This increases the surface area available to attract contaminants. The carbon is then pressed together to create a fixed carbon block. This increased surface area increases the ability of our filter to attract and “trap” carbon-based contaminants as water passes through the block. Since the surface area of the pores is limited, the carbon filter has a limited trapping capacity. That’s why the cartridge/filter must be replaced every year. Back to Top Q.
