Bacteria can be removed using a good water filter, but one needs to know some basic facts. This article from the Water Quality Association has a succinct and accurate summary of the methods used.
Note that the article refers to chlorinated water, which is the most common method for water utilities to mass kill bacteria. This then leaves potentially carcinogenic chlorine in the water.
AlkaWay uses the very best approved catalytic carbon in the Ultrastream, rated at around 8 x the capacity of cheaper granular activated carbon.
It also uses patented KDF Media which has the ability to electrocute bacteria.