Orisa is the name of this water filter. We can now forget complicated and large appliances. This little piece of equipment is autonomous Its functions without electricity and can be carried easily. Using it is very simple. You just go and get water from the spring or any type of surface water. You need to connect the tap to any type of container. Then you pump and you get up to 120 litres per hour, simply through manual pumping. And it tastes really good. How does ORISA function? Thanks to a technology using membranes. The membranes are like straws with very thin holes. Thin enough to prevent the smallest virus go through. You pump, water goes through the membrane but any virus, bacteria or any biological infection remain inside, and water is then purified instantly. A simple innovation which could change the daily life of 2.5 billion people living with no access to safe drinking water. Which could also save lives in emergency settings such as natural disasters. David Monnier knows this sector well. Haiti, Sudan, Chad, he is an experienced humanitarian worker with over 15 years of experience working for NGOs such as the British Red Cross and Solidarites International. I witnessed extremely critical situations, people living dramatic settings, and I think that if they had had access to solutions like ORISA, their lives would have been, somehow, less harsh. Small organisations can also secure access to safe drinking water, in a very simple way. They just need to position a few ORISA filters in a school, only 3 or 4 even, would be enough to provide safe drinking water to pupils for several years. David hopes and intends to provide sustainable assistance, which implies going to explain how to use it, how to maintain it and how to repair it, while trying to build a link with the service users. The ORISA unit price is 80 euros. The first ORISAs will be sold by end of March to various organisations.