The description said 0.01 microns and filters 1000 L. The life on the box says 100/200L and filters only to .01 microns. As you can see from the picture that's completely false

Great portable water filter, small and effective

As described and delivered on time.

This is my first water straw that I've bought. I'm quite impressed. I'm trying to get packs ready to go camping and want each pack to have all the emergency items in them so we don't end up with the one with emergency supplies separated from someone who needs it. These are perfect. I've got 4 packs to supply so I will be ordering more. I would also recommend it to others needing an emergency go bag.