UVBrite by trutemp. UVBrite bottles use ultraviolet (UV) light for sterilization of water. UV sterlilization which is also known as UV disinfection or ultraviolet germicidal irradiation (UVGI) works by breaking down certain chemical bonds and scrambling the structure of DNA, RNA, and proteins effectively destroying all microorganisms. Ideal for hiking, travel, office, fitness, camping, or anywhere you want to have the ability to have purified water.Annihilates virusesAnnihilates bacteriaAnnihilates pathogens50 sanitations per chargeIPX7 Waterproof1-Year Limited Warranty99.99% Germ Free WaterUV Self-CleaningWater PurifyingInsulated18.6 Ounces (550 ml)