Guy Tests a LifeStraw's Effectiveness Under a Microscope at 400x Magnification
Do LifeStraws Really Work? This guy shows us what water, filtered through a LifeStraw, looks like under a microscope at 400x magnification
Published 5 years ago in Wow
Do LifeStraws Really Work? This guy shows us what water, filtered through a LifeStraw, looks like under a microscope at 400x magnification
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