f you’re a veteran reader on the survival blog scene, chances are you’ve already seen your fair share of LifeStraw reviews already. These small, portable little water filters have been making the rounds from blog to blog for quite some time now, and for good reason. The LifeStraw is a hand-held personal water purification system that actually manages to remove 99.99999% of the waterborne bacteria in lakes, streams, rivers, etc., helping to make personal consumption of natural bodies of water overwhelmingly safer than without the straw. From a survival perspective, it’s obvious how one of these could really be a life saver in an emergency situation. Yet they’re really handy when it comes to camping and hiking, too.