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.
More top news
The Pride of Britain Awards are less than a month away, and today we find out who'll represent Wales in the Fundraiser of the Year category.
Police are appealing for information following a sexual assault on a 29 year old woman that took place in Pontllanfraith.
The personal tragedies and triumphs that have shaped his life. Terry Yorath: Life on the Edge, ITV Cymru Wales on Monday, 23 October (8pm).