Just wanna share this to the community, its a portable water filtration that is great for hikers, backpackers, mountaineers, trekkers and others. Perfect also for Third World countries with no source of free potable drinking water. This can also be purchased at Amazon.com.

Here are some video links :

http://www.youtube.com/watch?v=LIMp8MD7m88

http://www.youtube.com/watch?NR=1&v=HnxNTVTMdeg&feature=endscreen

http://www.youtube.com/watch?v=CI1vfRjuL9U

http://www.youtube.com/watch?v=iNb5OHf1CiU