Please follow the recommendations below for a better pumping experience using your eufy Breast Pump:

• Please use the included nipple measurement card to choose the right size. 
• Elasticity can affect sizing. You may need to size down if you have elastic nipples, or size up if you have less elastic nipples. 
• If you are experiencing discomfort or have noticed a consistent decrease in breast milk output, please try using different flange/insert sizes.
• Please adjust the wearing position and ensure the nipple is at the center of the flange tunnel. Use a full-coverage nursing bra with a flap to create a tight seal between your breasts and the flange.
• Please try different suction and rhythm settings. 

If you have any further questions regarding the eufy Breast Pump, please don't hesitate to reach out to us for assistance.