This is such a great plan, obviously well thought out. Why doesn't a couple of people get together with Heifer International and manufacture these? That way Heifer could spread the word and transport the filters where ever they go. It would help the people traveling and the people living there.
This is super cool technology. Just to think, it took one man seven years to complete this. I say lets not waste another second. Mass produce it and ship it all over Africa. Heck, ship it all over the world!