Each sheet from this life-saving tome can provide 30 days of drinkable water – all together, the entire volume is able make a total of 5,000 liters fit for human consumption (enough for four years). Instructions printed on each page tell readers why and how to use them as filters in a variety of languages.
Coated in silver nanoparticles and written on with food-grade inks, the pages are able to actively kill off deadly diseases found in the water supply of developing countries. Straining out particles and reducing bacteria counts by over 99.99%, their filtering capabilities leave safe-to-consume potable liquid on par with American tap water.
Co-engineered by creators from Carnegie Mellon and the University of Virginia, the sheets are made to be torn out easily and inserted into a filter box, which doubles ingeniously as a storage and shipping container for the books as well.