Do all water filters remove disease-causing organisms from drinking water?
The answer is a resounding no! In order to be effective against many disease-causing organisms, including cryptosporidiosis, a filter must be extremely fine. The openings have to be 1 micron (that’s 1 millionth of a meter) or smaller. When purchasing filters for your home, read the package carefully. It will usually tell you which diseases it protects against.