janet omari wants to change that. for a year she's been working for the swiss company vestergaard frandsen. she travels to the villages to offer people an alternative. here in the region, she and her colleagues have distributed 900,000 of these water filters: filters with pores so small that they don't catch just dirt but also bacteria. the people no longer need to boil water to purify it. now janet is checking to see how well the filter, called a lifestraw, is working out and where there are still problems >> where we still have to work with the people is education. you know change is gradual. so the only thing we need to do is educate our community. will they use our lifestraw and have safe drinking water. so the only challenge is, like, we need to educate them more and inform them more. so once they are empowered with education, things will work out. >> the filters are completely free of charge for the families. but they aren't always received whole heartedly. it took some effort for 15-year- old sarah to convince