LifeStraw Go is an advanced water filter and bottle that makes contaminated water safe to drink. Ideal for hiking, camping, or emergency preparedness, it allows you to get water from a stream, river or tap and filter it on the go. The 2-stage filter removes bacteria, parasites and microplastics, reduces chlorine and organic chemicals and improves the taste of the water. Uses advanced hollow fiber membrane technology (0.2 microns) to remove waterborne bacteria and protozoa up to 1,000 gallons (4,000 liters)Removes 99.999% of microplasticsReplacement hollow fiber membrane cartridges availableRemoves 99.999999 percent of bacteria (E. coli)Removes 99.999 percent of parasites (Giardia, Cryptosporidium)Excees\ds US EPA drinking water standards for bacteria and parasitesUses replaceable activated carbon capsule to reduce bad taste, chlorine and organic chemical matter for up to 26 gallons (100 liters)Requires no electrical power, batteries or replacement partsDurable, leak-proof bottle made of BPA-free TritanFilter and mouthpiece detach for easy cleaning