The human body contains from 55% to 78% water, depending on body size. To function properly, the body requires between one and seven liters of water per day to avoid dehydration.
Clean drinking water is essential to humans and other lifeforms. Water fit for human consumption is called drinking water or potable water. Water that is not potable may be made potable by filtration or distillation, or by a range of other methods.
Now, since water pollution is increasing from year to year, access to clean water becoming more difficult. This is specially true in developing country. One invention, aim to improve on this though. Introducing Pure Water Technology. Pure, filters and sterilises water from any source, anywhere in the world in two minutes. Pure uses a custom designed filter and wind-up ultra violet light to ensure the water is pure and sterile.
A custom designed filter reduces the particles in the water down to 4 micron (very tiny) so the water is clear to look at. Once clear the UV bulb is used to sterilise the content. The UV bulb operates at a frequency designed to destroy 99.9% of harmful microorganisms. When a microbe is exposed to UV it will absorb the light. This prevents the cell enzyme from understanding the DNA. Without correct DNA they can't reproduce. If they can't reproduce they can't make you ill.
No information on pricing or when it will go into production at the moment.
Source from Pure Water Technology