Is the pump easy to assemble and transport?

If the breast pump is difficult to assemble, take apart or clean, it's bound to be frustrating — which might reduce your enthusiasm for pumping. Make sure you can remove any parts of the pump that come in contact with your skin or milk for cleaning after use.

If you'll be toting the pump to work every day or traveling with the pump, look for a lightweight model. Some breast pumps come in a carrying case with an insulated section for storing expressed milk.

Also keep noise level in mind. Some electric models are quieter than others. If it's important to be discreet, make sure the pump's noise level is acceptable.