$300 bottle turns soiled toilet water into crystal clear drinking water.

The LifeSaver bottle must be the Product of the Year. A British man has invented this $300 plastic bottle with a super filter, which cleans water contaminated by bacteria, parasites, and viruses in seconds.

The bottle could be a life-saver for refugees in disaster regions where access to clean drinking water doesn't exist, and it could also become standard equipment for the military. In July the bottle was voted "Best Technological Development" at the Soldier Technology conference.

The filter in the bottle can distill an amazing 1,000 gallons or 1,500 gallons of water without changing the filter.

Conventional filters can only stop bacteria measuring more than 200 nanometres, but not viruses, which are less than 25 nanometres long.

In fact, the Life Saver bottle can clean up any water - including toilet water with faecal matter - because the filter keeps out anything longer than 15 nanometres, which means that viruses can be filtered out without the use of chemicals.

In addition to the mechanical filter, LifeSaver bottles also contain an activated carbon filter. This reduces a broad spectrum of chemical residues including pesticides, endocrine disrupting compounds, medical residues and heavy metals such as lead and copper. It also eliminates bad tastes and odors from contaminates such as chlorine and sulphur.

The bottle goes on sale September 17, and you can order one here.

- Peter Rost, M.D. is a former VP of Pfizer and the author of Killer Drug and The Whistleblower.