• Easy to use, blow the gas in to complete the collection of odor. The mouthpiece of this product features a duck beak design inspired by a baby's pacifier to prevents from leaking 100%!
• Easy to blow, mouthpiece sealing performance is excellent. In 2020, the United States invention patent has been registered.
• No odor leakage. Bamboo fiber is added to the shell of the filter element, which can be degraded in 2 years! 2.0 version and 3.0 Black Hole version of the filter cartridge is universal, More convenient!
• When you feel that the filter element is clogged or does not work, please purchase this version of replaceable filter element in a timely manner.
• Warm tips: Open the lid after use, and blow dry the newly generated water to prevent the rapid accumulation of water,Keep dry to extend the service life of the filter element!