A. Backflow prevention, stable and safe suction system. Backflow prevention prevents liquids from flowing back, protecting the baby's sensitive nasal mucosa and ensuring safety. B. Gentle suction, caring for baby's health. Specially designed gentle suction force effectively removes nasal congestion without damaging the baby's nasal mucosa. C. Compact and convenient, use anywhere. Ergonomic design, light and convenient to hold, easy to use both at home and on the go. D. Easy to clean, ensures hygiene. Parts are easily disassembled, suitable for high - temperature disinfection, preventing the growth of bacteria and ensuring cleanliness. E. Ultra - quiet operation, gentle care for baby. Noise reduction technology ensures quiet operation, so your baby will not be afraid and will let you take care of his nose with peace of mind.