In Bangladesh, 1 in 5 deaths (600,000 per year) occur due to groundwater arsenic, dubbed by WHO as the largest mass poisoning in history, with some 77 million people at risk. Toronto-based PurifAid will deploy new filtration units via franchised villagers who will filter and deliver purified water, perform maintenance, acquire new filters and dispose of old ones, which can be used to produce biofuels. We plan to roll out a new generation of filtration units which run on an organic by-product of the beverage industry.