Breast pumps and pumping gear can get expensive. Is buying used breast pumps safe? What about other pumping accessories? Here’s what to consider.

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Is buying a used breast pump and pumping gear safe?
It depends on what you’re buying. Most pumping gear and accessories can be safely used when purchased second-hand.
Breast pumps
For buying a second-hand breast pump, there are two different concepts that you want to think about:
- Open system versus closed system. Closed system breast pumps have a barrier between the pump parts and tubing, preventing breast milk from reaching the motor. Open system breast pumps do not have this barrier.
- Single-user versus multi-user. Most breast pump manufacturers designate a pump as single-user (intended to be used by one person) or multi-user (to be used by multiple people, such as in a hospital setting).
Most personal breast pumps (such as the Spectra S1 and S2, Medela Pump in Style with Max Flow, etc.) are now closed system and single-user. (Older Medela personal pumps like the original Pump in Style are open system.)

Buying a closed system, single-user breast pump is probably fine. Keep in mind that because the breast pump manufacturer designated it as single-user, the warranty usually only applies to the original owner. This means that if the pump breaks after you buy it, you’re probably out of luck.
Though the chances of anything happening are somewhat remote, I wouldn’t recommend buying a used open system breast pump, because the pump motor cannot be sterilized.
Buying a second-hand multi-user breast pump should be fine. You may want to ask the person you’re buying from about the warranty and whether it still applies.
Breast pump accessories
Most breast pump accessories can be washed and sterilized and safely used by another person.
When deciding whether or not to buy an accessory second-hand, here’s what I would consider:
- Does this accessory come into contact with breast milk?
- If it does, can it be sterilized? If so, it should be fine to sterilize the item and use it. If not, I would avoid buying this item.
- If it doesn’t, can be it washed? If so, washing should clean it sufficiently for it to be re-used.
So for example, let’s say you find someone selling a gently used Elvie Catch (a milk catcher that goes in your bra) in a Facebook group. Because the Elvie Catch can be sterilized by washing it in the dishwasher, this should be fine.
But let’s say that someone is selling pump parts that they used a few times, and the manufacturer says that the duckbill valves should not be sterilized. I would avoid buying these pump parts.
Apparel
Buying second-hand breastfeeding apparel such as nursing bras, nursing tanks, and nursing tops is fine. You’d just want to make sure to wash before wearing.
Keep in mind that apparel like nursing bras and tanks may get stretched out over time, making them less effective, so asking about the condition before you buy is a good idea.
Where can you buy second-hand breast pump gear?
Often, thrift stores and places that accept donations don’t accept breast pump gear, because breast pumps are considered medical devices.
So where can you find breast pumps and other pumping gear second-hand when you’re interested in purchasing them?
Facebook Groups or Marketplace
I asked on Instagram where people had bought and sold secondhand pumping gear, and Facebook Groups and Marketplace were the top answers. Some of the groups mentioned included:
- Local “Buy Nothing” groups
- Local new mom groups
- Exclusive Pumping Buy/Sell/Trade groups (EP Trading Post is an example, though please note that I am not affiliated with this group)
Online Marketplaces
Other people mentioned that they had bought pumping gear second-hand on Mercari or Ebay.
What to watch out for when buying breast pump gear second-hand

Here are a few things that I wanted to highlight again to think about when you’re buying breast pumps or pumping accessories that have been gently used.
- Warranty – If the item has a warranty, will it transfer to you or is it only valid for the original owner? If it won’t transfer to you, consider how big of a deal it will be to you if it breaks or stops working.
- Can be it sufficiently cleaned to be safe for baby? If the item will come into contact with breast milk, make sure that you can sterilize it in the dishwasher, by boiling it, etc.
- Is it really still good? For some products, it’s important that the item not be stretched out. For example, if a hands-free pumping bra is stretched too much, even if it’s in otherwise good condition, it won’t hold up your flanges securely.
Have you considered buying a used breast pump or other pumping gear? How did it go? Tell us in the comments!
Comments & Chitchat
On Mercari, I’ve found TONS of used Spectra pumps where the seller shows the hours used. I’d like to purchase a synergy gold that way, but am hesitant to spend 100 bucks on a pump without a warranty. Any advice? I got a bad pump through insurance and am using a portable as my primary pump, and it’s just not cutting it. I need a heavy hitting primary pump to get me thru my EP journey this time around. This particular synergy gold only has 8 hours on it! I’m just scared of not having a warranty. Any advice?
What a helpful article, and what an extraordinary website you have! I was googling how to sell a breast pump & I stumbled across your site. For my 2nd kiddo, I pumped a *ton* for her, and I expected to do the same with our 3rd (and last) kiddo, so I opted for one of the best pumps I could get last year. Unfortunately, my son would not take a bottle for anything! So the pump literally got used a handful of times, and I have a ton of completely unused equipment (replacement tubing, bottles & such — several sets, still in the original unopened packaging). I’m looking forward to passing all of it on to someone who could use it, and maybe make a few dollars. Thank you so much for all the helpful info!!!
Thank you Amanda!
Milk stash is still taking to adult site! Can’t find the real one
I think it closed down! I just removed it from the article. I’m sorry!
The link for milkstash takes you to an “adult” website.
Thanks for letting me know!
I’m having a ton of trouble with a hands free nursing bra. I ordered the Simple Wishes one, but I can’t seem to get a letdown or good output when using it. I’ve adjusted the bra to fit both loosely and snugly, but either way, I’m not getting good nipple movement, if that makes sense. When wearing the bra, my nipples constantly stay sucked into the flange, so I’m not getting a good in and out suction. Whenever I just hold the shields in place, I produce much more in a single session. I’m new to exclusive pumping and am going crazy holding the shields 8x a day! I was really hoping to find a hands free solution but I cannot make it work! Any suggestions?
Hi Hannah! I’ve been thinking about this for a few days now! I’m so sorry you’re struggling with this. What do you think is different in how the breast shields are situated on your breasts when you use the bra versus when you hold it? Are they tighter on there? Looser?
If you have an old sports bra, you could try cutting holes in it and kind of make a DIY one and see if that works better?
Hey Amanda, thanks for responding. I think I was getting too much compression with the pumping bra, even though I had it fairly loose. I ended up buying the LactaMed Simplicity hands free bra, and although it looks like a medieval contraption, it works! I’m only 10 days into exclusive pumping, and I’m so happy I can finally go hands free! Thanks for your help!
Yay! So glad to hear it!!