There are bunches of water purify solutions out there. The last step for people to drink water is using a bottle or cup to deliver it to mouth. As long as we provide a solution to integrate the purify methods in portable size and embed it into a bottle, people can always have hygienic water anytime and anywhere. There are many products with similar function provided in market. LifeStraw is an example of this. When we can compress the cost of products and disseminate this products among families and communities, the situation could be improved.