How to choose a breast pump

Step 1: the insurance call

Do this before you shop. Ask your plan three things: which pumps are covered, which supplier you have to order through, and whether you can pay the difference to upgrade to a model you would rather have. Plans differ enormously, and the list of covered models is often shorter than the supplier's catalog suggests.

Two notes people wish they had known. Coverage is usually for a standard double electric, so if you want a wearable you may be topping up or buying outright — see the wearable ranking for what that money buys. And durable medical equipment suppliers who specialize in pumps will often handle the paperwork for you, which is genuinely useful, though they have an interest in which model you choose.

Step 2: which type of pump

Traditional double electric

A motor on the table, tubes to two collection bottles. Strongest and most tunable suction, fewest parts to wash, cheapest for the performance, and what insurance covers. Buy this if you are pumping daily, if you are exclusively pumping, or if supply is what you are watching. Our pick is the Spectra S1 Plus, and the exclusive-pumping guide explains why the battery matters at volume.

Wearable in-bra pump

The whole machine, battery included, sits inside your bra. Slightly less output, more parts to wash, more money — and it lets you pump while doing something else, which for a lot of people is the difference between pumping and not. Buy this if you are going back to work or have a toddler in the house. See wearable vs traditional.

Manual hand pump

A handle and a funnel. Costs a tenth as much, needs no power, and is the better tool for collecting colostrum in the first days and for relieving engorgement. Buy this if you will pump occasionally, or as a backup even if you own an electric pump. See best manual breast pumps.

Step 3: measure your flange size

This is the step that decides whether pumping works, and it has nothing to do with the brand. The flange is the funnel that sits against your breast. Too large and you draw in tissue that should not be moving; too small and it pinches. Either way it hurts, you get less milk, and people blame the pump.

Most pumps ship with one or two sizes, and plenty of people need something outside that range. Check what sizes the brand sells at all before you commit to it. Measuring takes five minutes: the flange sizing guide.

The specs that actually matter

• Closed system — a barrier keeps milk out of the tubing and motor. Easier to clean, and the only kind worth using second-hand with new parts. Everything we recommend is closed.
• Independent cycle and suction control — being able to adjust speed and strength separately is how you find what works for your body. A single dial that moves both is a real limitation.
• Battery or mains — a battery decides where in the house you can pump, which matters a lot more at six sessions a day than at one.
• Parts count — count the pieces you will wash after every session, per CDC pump hygiene guidance.
• Noise — irrelevant at home, decisive in an office.

What does not matter: the headline suction figure. Every pump here has more suction than you should be using, and the highest setting is rarely the most productive. Comfort gets you more milk than strength does.

What else to budget for

A hands-free pumping bra, two or three spare sets of parts so you are not washing between every session, storage bags or bottles, and a way to sanitize. On that last one, a cheap microwave steam sterilizer covers it; an electric sterilizer-dryer is worth it if you are pumping several times a day, because the drying cycle is the time-saver.