SPRINGCLE / Water bottle

An item to simply purify polluted water
An item for women who have to climb the mountain to fetch water
An item to store water sanitarily
A bent neck bottle makes to keep a bottle conveniently, and bottle and filter is connected into a one-piece foundation for simple use. The filter should be easy-detachable and made with materials that can be found in local so people can easily access it. Also the graduations, which show amount of water used, should be marked on the side of the bottle.