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→‎Acknowledgements

==Acknowledgements==

* [https://www.diageogivingforgood.com/how_filters_work.aspx information on The CrystalPur filter]. World Health Works (WHW) a spin-off of EnterpriseWorks/VITA, makes the CrystalPur filter], which was introduced in response to the need for low-cost domestic water filters in developing countries.

* Safe Water Today: Supporting Global Water Projects [http://www.safewatertoday.org/]

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