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The Centre for Affordable Water and Sanitation Technology (CAWST) has 1.7 million of its biosand filters in communities all over the world.

United statesJacob amengorMohammad maarefiTaryn meyersCamille dow bakerDavid manzUniversity of ghanaInternational water association young professionalsSanitation technologyUniversity of calgaryCentre for affordable waterAffordable waterNorth americaInternational water associationYoung water professionals