Helping more people around the world to have access to safe drinking water is one of the greatest challenges of the 21st century.
But a company from Carmarthenshire are aiming to improve the situation, with their pioneering technology for purifying water.
The technology takes three minutes to clean the water. We've sped up that process for you in the video below, so you can see how it works.
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Safe to say there is very little to get excited about as far as our weather is concerned! All very autumnal over the next few days!
It's certainly not the brightest of starts to the day, with drizzly rain in places.
It will feel much milder tonight that it did last night, with patchy showers around the coasts.