Once a community has access to water, how do you make sure it is safe to drink? Cheap, efficient water purifiers are in high-demand. There are a variety of high-grade purifiers on the market — SteriPen, for example, has options for camping, emergency and military use.
There is also, however, a new breed of extraordinarily low-cost purifiers hitting the market such as the LifeStraw from Vestergaard-Frandsen. The LifeStraw is a large, straw-like device that is outfitted with a series of water filters. Users can use the straw to drink directly from any source of water, instantly making it potable. There is also a larger, family-size version meant for larger quantities of water. Best of all, the LifeStraw costs only $19.95 with discounted rates for overseas and emergency use.