Water Treatment and Chlorine Dioxide Drops
Chlorine Dioxide drops are one of the best solutions for portable water treatment while camping, hiking, or in emergency situations where water sources are questionable. 
Chlorine Dioxide drops have been used for decades for ensuring water can be consumed safely, and they are effective at destroying almost everything in the water that could make you ill. 
Access to clean water is arguably the most important issue during any type of outdoor activity or emergency.  Without water, our internal organs start to shut down within days.  If the water is contaminated with parasites, viruses, or bacteria, illness can start within hours.  
Chlorine Dioxide drops are very effective on their own, but it is always recommended to use filtration as an extra step if possible to increase safety with your drinking water.