Getting stuck without clean water is not ideal. Thanks to the Ministraw Mini Water Filter, you will have clean water during emergencies. It has a 0.1 micron fiber membrane and can remove the majority of particles, pollutants, chlorine and diseased contaminants.
The ABS straw can filter out water at a rate of 0.2 gallons per minute. You can use it with water bags or bottles. more information is available here.