Filter Facts

Kleenex tissues were originally used as filters in gas masks.

The LifeStraw is a portable water filtration device that allows users to drink directly from contaminated water sources, filtering out 99.9999% of bacteria and 99.9% of parasites without electricity, batteries, or moving parts.

Penguins have a supraorbital gland above their eyes that filters salt from seawater, allowing them to drink ocean water and expel the excess salt through their beaks.