​​​​◆ Weighing only 1.23 oz., the easy-to-use & light Purewell water filter straw takes up very little space in your backpack

• ​​​​◆ Just sip on the straw and water will be filtered when it's on the way to your mouth
• ​​​​◆ Fill your water bottle and screw on the filter or insert the filter to start sipping
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• ​​​​◆ 0.01-micron (minimum) filter physically removes 99.99% of all bacteria, such as salmonella, cholera and E.coli; removes 99.9% of all protozoa, such as giardia and cryptosporidium
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• ​​​​◆ Effectively filters up to 1,200 liters (317 gallons)
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• ​​​​◆ Regularly blowing through the water filter after drinking helps keep the filter clean and prevents clogging
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• ​​​​◆ Includes a durable carabiner