This QUARTZ thermos cup can not only keep warm but also comes with ultraviolet sterilization. The bottle cap has a built-in UV-C mercury-free ultraviolet LED lamp with patented technology, which can emit 280 nanometers. Ultraviolet light sterilizes the water in the bottle and can kill 99.9999% of bacteria in normal mode. When used outdoors, the high-power mode can kill 99.99% of viruses.
The ultraviolet lamp sterilization automatically turns on for 60 seconds every 4 hours, and can sterilize the water in the thermos cup 6 times 24 hours a day. If you want manual control, touch the cap for instant sterilization. The QUARTZ thermos cup is made of food-grade 304 stainless steel, does not contain bisphenol A and phthalates, and is especially suitable for children or the elderly with poor immunity.
