Breast shields or flanges are the part of the pump that goes directly on the breast. They are essential for pumping efficiency so that you can get the most out of your sessions. Incorrectly sized breast shields can lead to soreness, blocked milk ducts, and impact milk production. One size does not fit all, that is why Zomee offers you a wide range of breast shield sizes.

The first step to determining your breast shield size is finding out the diameter of the base of your nipple. Using the ruler in your manual, measure the diameter of your nipple at the base (across the middle) in millimeters (mm). Do not include the areola. Based on your measurement, add 2-3 millimeters for your Zomee breast shield size. Tip - if your nipple measures 16mm in diameter, your recommended breast shield size is 19mm.

The standard breast shield sizes are between 21mm – 24mm, but you may need a smaller or larger size. It is important to confirm you have chosen the correct size, and a good way to check is by testing the two breast shield sizes that were included with your pump (or the size chosen after measuring your nipples).

Here is how to check:

-Hold the shield against your breast, making sure your nipple is centered in the tunnel.

-During pumping your nipple should be able to move freely in the breast shield tunnel, not rubbing against the sides. There will be space around your nipple and only a small part of the areola is drawn into the tunnel.

-After pumping breasts feel emptied.

The breast shield you are using is:

Too small if some or your entire nipple rubs against the sides of the breast shield funnel. Too big if your areola is drawn into the breast shield funnel and/or rubbing up against the sides of the breast shield funnel.

*Please note that pressing the breast shields too hard against your breasts when pumping can block your milk ducts.