Description

A genius water purification system. Its not just a filter that relies on trapping small particulates and bacteria. Instead, it uses adsorption (yes, I spelled that correctly). Essentially, the filtration material is positively charged, which grabs onto negatively charged cellular membranes as they pass by. This means the Grayl filters bacteria, protozoa, AND VIRUSES, the latter of which would normally be way too small for a typical filter to catch.