The ceramic filter FILTRON was built by the company Merinsa, in paternship with the US-based non-profit organisation Potters For Peace, for families living in slums around Lima and without access to drinkable water. A study was undertaken in order to evaluate how the filters reduce illnesses due to contaminated water: a filter was given to 60 families and a comparison was made with 60 other families who did not have filters. The results proved the efficiency of FILTRON in the reduction of stomach illnesses. After the study, a filter was given to all the families who took part of the experiment.
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