If you’re too obsessed about always having a clean, pure, health water, then you need one of these, the iStraw. This lightweight polycarbonate straw comes with a built-in micro-filtration that removes any contaminants and purify the water. Instantly. While most people would probably laugh at this “innovative” product, those who travel a lot, especially to a place with rare water source, would definitely adore iStraw. It’s handy and also cheap ($40, £19.99), nice combo isn’t it?

Note that one iStraw is good for purifying up to 500 liters of water.

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