Comment on Segway inventor on future technology – and why videogames aren't itparentComments−nazgulnarsil17yhow is it superior to simple bleach based purification? http://www.survivaltopics.com/survival/better-than-bleach-us...
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how is it superior to simple bleach based purification? http://www.survivaltopics.com/survival/better-than-bleach-us...