Saving Gaia
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Many people around the world do not have access to clean drinking water. It is a major global health problem. The World Health Organization (WHO) assesses that that 10% of the world's population are at risk. That is 1 in 10 people around the world, do not have clean drinking water that many other people take for grant. Especially in disaster-stricken regions and remote rural areas, people often drink contaminated water, resulting in widespread health problems as cholera, diarrhea and typhoid.

A Singapore-based company, WateROAM is tackling this problem by providing a cheap device to produce clean drinking water from contaminated water. WateROAM produces Roam Lite, Roam Plus and WR Ultrafiltration devices. 

Roam Lite is a 400g, palm-size water filtration device which looks like a normal plastic bag. However, the portable filtration system can work for three years without power. It removes bacteria and other pathogens to produce 6-10 liters of clean water in just an hour. It is also affordable at US$25. Roam Lite is targeted at households.

The Roam Plus is designed for NGO and community usage. The 4.5kg lightweight device is capable of producing 250 litres of clean water per hour and can last for two years.

The WR Ultrafiltration system is a larger device which can generate 800 litres of clean water per hour. The U$1970 device is also designed to be more durable than Roam Plus. The complete system weighs 43 kg.