Distilled water undergoes a process to remove impurities like minerals and other trace elements to make it as pure as possible. Unlike a basic drinking water filter, distilled water can be used to run ...

Add Yahoo as a preferred source to see more of our stories on Google. You probably have a few water bottles stashed for an emergency, but if you rely on sensitive medical gear such as a CPAP machine, ...

Distilled water might not be something you think about every day, but in the middle of an emergency, it can quickly become one of the most important supplies in your home. Whether you're using a CPAP ...

Listen to the full series on BBC Sounds. Fractional distillation works because the different liquids have different boiling points. When the mixture is heated: vapours rise through a column which is ...