The Prep Store Water Filter Straws can filter metal, it also filters viruses and bacteria. The water taste after filtering is fantastic. It’s really the original natural water with sweet taste. Removes minimum 99.9999% of waterborne bacteria (>LOG 6 reduction) and surpasses EPA standards for water filters.
Removes minimum 99.9% of waterborne protozoan parasites (>LOG 3 reduction) and filters to an amazing 0.2 microns, Filters up to 1000 liters of contaminated water without iodine, chlorine, or other chemicals