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africa is ran out of water due to severe drought in recent years
So it takes the residents an average of five hours a day to navigate for clean water. But even the water it gets is often polluted.so, more than one billion people - one sixth of the world's population - are withouth access to safe water supply. at any give moment, about half of the world's poor are suffering from waterborne diseases, of which over 6,000 mainly children die each day by consuming unsafe drinking water. Life straw was developed by Vestergaard Frandsen in Switzerland in a practical response to the billions of people who have no access to these basic human rights. Lifestraw eliminates 99.9999 percent of water-borne bacteria and 98.5 percent of viruses. How can a life straw remove bacteria and viruses from the pollute water? 1. dirty water sucked through bottom of the straw
2. fine mesh removes dirt and sediments
3. finer mesh removes larger bacteria
4. cleans 99% of bacteria and viruses
5. clean granules remove remaining imparities
and improve taste and small
6. clean water sucked through top of the straw
Then, what are the advantages of a straw? Life straw's filters can filter out most of microorganisms and parasites in polluted water. So, It can solve the lack of water in Africa. Life straw is portable,so you can hang it on your neck and carry it.
Another advantage of Life straw is that it doesn't need to be charged and you don’t need to change the filters.
Let's find out the disadvantages of a straw.However,Life Straw can’t purify sea water. And,it’s also too expensive for Africans.