Sorry, this is press release journalism lacking in a fully-developed, practical application.

In this case, it's still pre-alpha and unable to assure removal of enough viruses, bacteria, protists, and fungi to result in potable water.

In the category, LifeStraw and such are worthless apart from absolutely clear water. They don't have the pressure delta or surface area to do much. One hit of brackish water and you're tossing filters because they become completely clogged. If you want clean water, perhaps ~13 stages with large filters before reverse osmosis via electric pump.