1. Please wash your hands before use. 2. The breast pump should be assembled correctly after disassembly, cleaning and disinfection. 3. Sit on a chair, sit in a comfortable posture, and lean forward slightly for breast pumping. 4. Open the dust-proof cover, use the bottle converter to select a milk bottle with a suitable caliber according to the amount of milk pumped. 5. Align the nipple with the massage pad and at the same time put the breast cover close to the breast. To prevent air leakage, please make the silicone breast pad close to the breast. Hold the other hand under the breast so that the breast shield fits closer to the breast. 6. Open the lock. 7. Hold the handle with a more comfortable force for breast pumping. 8. After the breast pumping is finished, put on the dust cover.