LifeStraw Go Series is the ULTIMATE SIDEKICK. The BPA-Free bottle filters out nasties so you can fill up from airport bathrooms, a tap in Mexico, or a gas station while road-tripping. It improves taste with a Carbon filter that reduces chlorine, odors, and organic chemical matter. The Membrane microfilter protects against 99.999999% Bacteria (including E.coli + Salmonella), 99.999% Parasites (including Giardia and Cryptosporidium), 99.999% Microplastics, sand, dirt, and cloudiness. The membrane microfilter lasts up to 1,000 gal (4,000 L) - about five years of daily use. The Carbon filter lasts up to 26 gallons (100 L) - about two months. The membrane microfilter lasts up to 4,000 liters, saving approximately 8,000 single-use plastic water bottles from parks, oceans, and communities. The bottle has a capacity of 1 L (34 oz) and weighs 268 g with a height of 28 cm. It is made of BPA-free material and is dishwasher-safe after removing the filter. The pore size is 0.2 micron and it complies with NSF 42 (chlorine reduction) and NSF P231 (bacteria and parasite elimination) standards.