Straw cleaner / Water filter

In water-deficient area, people have to drink dirty water that hasn’t been filtered and contains a lot of bacteria and virus, which often leads to diseases and deaths. Straw cleaner is a water filter having nanometer filter layers in it. It can fast clean the water while user’s sucking. The end of it is a net to put small stones which can be easily got. The stones are used as the first filter layer to filter out the solid impurities in the dirty water. The straw is soft so that you can wear it on your neck or waist.