No pumping, no moving parts, no waiting for gravity to work: just insert the end in a water source and suck. LifeStraw uses the same hollow tube technology as full-size water filters, resized for personal use or for your emergency kit. When you’re done drinking, simply blow residual water out and replace the end-caps.

• Treats up to 4000L (varies with water quality).
• Filters to 0.2 microns.
• Removes up to 99.99999% of waterborne bacteria and up to 99.9% of waterborne protozoan cysts.
• No shelf life, no iodine taste.
• Do not allow the cartridge to freeze after initial use.