F3, as a portable water flosser, is just the size of the iPhone when packed and convenient for storage. Due to the airtightness requirements in the industry, the relief port must be open when drawing the water tank, while F3's unique wedge-shaped design can naturally deflate and reduce negative pressure without opening the relief port, and will automatically clip-on after stretching in place and form a good seal. The overall design is simple. The dust-proof cover at the water inlet is brief and delicate, while the wavy glass shell with skid-resistant function gives users a new experience.

DR.BEI is an emerging millet eco-chain company focused on providing high-quality oral care products to its customers. In the future, DR.BEI will also expand more Internet-based oral health services to create a comfortable oral health experience.

Founded in 2016, DOCTOR BEI is an emerging millet eco-chain company focused on providing high quality oral care products to its customers. In the future, DOCTOR BEI will also expand more Internet-based oral health services to create a comfortable oral health experience for users.