If families can afford it, she recommends a reverse osmosis filter, which will eliminate all impurities.

CNN: Is your bottled water safe?

It would also greatly reduce energy costs, since reverse osmosis involves forcing water through filters to remove minerals, and the Perforene filter is so thin that much less pressure is required (graphene is a thousand times stronger than steel).

FORBES: Move up http://i.forbesimg.com t Move down