Lifestraw Go Series 650ml Green Water Filter Bottle Description Drink safely from any source with the Lifestraw Go Series water filter bottle.This 650ml bottle features a double filtration system with a carbon filter, guaranteeing safe water free from bacteria, parasites, bad tastes, and odors.All microorganisms and particles larger than 0.2 microns are neutralized, making your water safe to drink.Please note:seawater cannot be treated with Lifestraw Go Series bottles.More than just a bottle, the Lifestraw Go Series 650ml Green water filter bottle includes:- A powerful water filter with a carbon filter straw.- A wide mouth opening for easy cleaning and handling.- A two-part cap with a built-in pipette for easy drinking without unscrewing the entire cap.- A large handle for easy carrying.- A common size:650ml capacity, 274mm long, and 75mm wide.- A total weight of 247g including the filter The filter is composed of:- Hollow fiber cells that stop bacteria, viruses, and parasites.- Carbon filtration that removes odors and bad tastes The filter lifespan is:- 4000 liters for the hollow fiber filter.- 100 liters (or a minimum of 3 months of use) for the activated carbon filter Both filters are interchangeable and are more than sufficient for survival training, travel, long hikes, or trekking in foreign countries.Lifestraw Warranty:Lifestraw products are sold with a 24-month warranty against any material or manufacturing defects.