Momcozy Air 1 rose gold breast pumps with charging case and app control on smartphone, product showcase.
Momcozy Air 1 breast pump 2.4in vs Mobile Flow 3.07in, showcasing 20% slimmer profile for product size comparison.
Momcozy Air 1 soft pink breast pump top-view design for easy alignment, measurement markings on clear lid.
Wireless charging case with a hand placing a pink breast pump inside, on a white background.
Momcozy Air 1 ultra-slim pink breast pump with smartphone app displaying smart notifications & real-time tracking.
Momcozy Air 1 pink breast pump & soft silicone flange. Gentle fit for all breast shapes for efficient pumping.
Momcozy Air 1 breast pump parts, including pink collector with measurements and flange, submerged in water for easy cleaning.
Momcozy Air 1 ultra-slim breast pump in lifestyle collage: flying, working, with baby, golfing. Slim. Smart. In Control.
Momcozy Air 1 ultra-slim breast pump in pink with measurement markings and 'momcozy' logo, product display.
Momcozy Air 1 soft pink breast pump with top-view funnel for easy alignment and efficient pumping, product appearance.
Momcozy Air 1 breast pump kit: rose gold pumps, case, flanges, cables, guides, and manual.
Work essentials! I must say by far I’m in love with the portability of my Air 1’s … I pump about 4 times a day and by far the easiest pump to carry at work 😍😍😍
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Momcozy Air 1 Ultra-slim Breast Pump

£369.99 GBP
Interest-free payment with or
Ultra-slim
Effortless Alignment
Wireless Charging
Smart App Control
STYLE: Double
Double
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Description

Sleek and Low Profile
With an ultra-slim 61mm/2.4" body, Air 1 sits naturally under clothing for a polished, less bulky look. It’s designed for mums who want pumping to feel more discreet during workdays, commuting, travel, and social outings.

Includes Wireless Charging
The wireless charging case supports up to 15 pumping sessions, about 30 minutes each, making Air 1 ready to go on busy days. Spend less time stopping to recharge and more time doing the things that matter.

Transparent Design for Alignment
The transparent 'top-view' design helps you align faster, while clear markings let you see milk output at a glance. When you’re pumping away from home or in the middle of a busy day, that extra visibility brings more confidence and fewer repeated adjustments.

Smart Pumping. More Control.
Air 1 goes beyond basic app control with sensor-enabled features like Auto Mode Switching, Milk Tracking, and Full Collector Alerts. You stay more informed throughout each session – without constantly checking, guessing, or interrupting your flow.

Generous 6oz Capacity. Slim Profile.
The 6oz collector gives you more space for milk without adding bulk. Air 1 is built to balance low-profile wear with real-life pumping needs, making it a strong fit for daily use, longer outings, and other outside home sessions.


Important Notes

Pour After Removing the Pump Motor
After pumping, detach the motor from the milk collector before pouring out milk.

Full-Collector Auto Stop Is Enabled by Default
Air 1 automatically stops pumping when the milk collector is full. If your pump stops unexpectedly, please check the full-collector setting in the Momcozy App.

Safety Warning

Do NOT use this device if you have a cardiac pacemaker, implanted defibrillator, or any other metallic or electronic implant, as it may cause electromagnetic interference or serious injury.

Key Features & Benefits

· Ultra-Slim & Discreet – Just 2.4 inches thin, 20% slimmer than other conventional pumps for ultimate privacy.

· Transparent Top for Quick Alignment – The industry-first design enables easy nipple alignment and instant milk checks.

· Wireless Charging Convenience – Delivers up to 5 days of use or 15 pumping sessions.

· Smart App Control & Auto Tracking – Connects to the Momcozy app for automatic mode switching, real-time milk tracking, and full collector alerts.

· Soft, Comfortable Fit – 50A silicone flanges provide gentle, secure comfort for all breast shapes.

· Easy to Clean – Only 5 parts to wash, with a durable PPSU collector for simple, hygienic care.

Need Replacement Parts?

Replacement parts for the Air 1 Ultra-Slim Pump are now available for purchase through the Momcozy App. Please check the App for details and purchase links.

Work essentials! I must say by far I’m in love with the portability of my Air 1’s … I pump about 4 times a day and by far the easiest pump to carry at work 😍😍😍
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Verified Buyer
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The accessories for this product:

The accessories for this product

Momcozy Air 1 Ultra-slim Breast Pump
Momcozy Air 1 Ultra-slim Breast Pump
Momcozy Air 1 Ultra-slim Breast Pump
$369.99 - $
Momcozy Air 1 Ultra-slim Breast Pump
Momcozy Air 1 Ultra-slim Breast Pump
Momcozy Air 1 Ultra-slim Breast Pump
$369.99 - $
Momcozy Air 1 Ultra-slim Breast Pump
Momcozy Air 1 Ultra-slim Breast Pump
Momcozy Air 1 Ultra-slim Breast Pump
$369.99 - $
Momcozy Air 1 Ultra-slim Breast Pump
Momcozy Air 1 Ultra-slim Breast Pump
Momcozy Air 1 Ultra-slim Breast Pump
$369.99 - $
Momcozy Air 1 Ultra-slim Breast Pump
Momcozy Air 1 Ultra-slim Breast Pump
Momcozy Air 1 Ultra-slim Breast Pump
$369.99 - $
Momcozy Air 1 Ultra-slim Breast Pump
Momcozy Air 1 Ultra-slim Breast Pump
Momcozy Air 1 Ultra-slim Breast Pump
$369.99 - $
Momcozy Air 1 Ultra-slim Breast Pump
Momcozy Air 1 Ultra-slim Breast Pump
Momcozy Air 1 Ultra-slim Breast Pump
$369.99 - $
Momcozy Air 1 Ultra-slim Breast Pump
Momcozy Air 1 Ultra-slim Breast Pump
Momcozy Air 1 Ultra-slim Breast Pump
$369.99 - $
Momcozy Air 1 Ultra-slim Breast Pump
Momcozy Air 1 Ultra-slim Breast Pump
Momcozy Air 1 Ultra-slim Breast Pump
$369.99 - $
Momcozy Air 1 Ultra-slim Breast Pump
Momcozy Air 1 Ultra-slim Breast Pump
Momcozy Air 1 Ultra-slim Breast Pump
$369.99 - $
Momcozy Air 1 Ultra-slim Breast Pump
Momcozy Air 1 Ultra-slim Breast Pump
Momcozy Air 1 Ultra-slim Breast Pump
$369.99 - $
Momcozy Air 1 Ultra-slim Breast Pump
Momcozy Air 1 Ultra-slim Breast Pump
Momcozy Air 1 Ultra-slim Breast Pump
$369.99 - $
Momcozy Air 1 Ultra-slim Breast Pump
Momcozy Air 1 Ultra-slim Breast Pump
Momcozy Air 1 Ultra-slim Breast Pump
$369.99 - $
Momcozy Air 1 Ultra-slim Breast Pump
Momcozy Air 1 Ultra-slim Breast Pump
Momcozy Air 1 Ultra-slim Breast Pump
$369.99 - $
Closes the player
Meet the Slimmest* Wearable Breast Pump
Bursting at the seams with sleek, smart power.
Discreet Under Any Outfit
Seamlessly blends into your daily life, to be worn beneath your normal wardrobe.

Take a closer look.

Measuring just 2.4 inches, which is over 20% thinner than others.*
3.07in
2.4in
Air 1 Mobile Flow™
Air 1
Mobile Flow™
Air product desc image
Thickness reduction
21.8%
Air 1 Mobile Flow™
Air 1
Mobile Flow™
Air product desc image
Air 1 Mobile Flow™
Air 1
Mobile Flow™
Air product desc image
Air product desc imageAir product desc imageAir product desc image
Air product desc imageAir product desc imageAir product desc image

See Milk Flow in Real Time

An industry-first, transparent top view for clear, confident pumping and quick alignment.

Powered by 62 Patented Innovations
Leave the hard work up to Air 1. Enjoy a breast pump that redefines feeding.

Power in One Case

Includes a stylish travel case with up to 1800 mAh battery capacity for on-the-go convenience.

Rhythm. Personalised to You.
Easily adjust mode, suction, and speed to match your body’s unique rhythm.
Optimised For Your Life
Optimised For Your Life
Save your favourite patterns and create routines
that work best for your body.
Save your favourite patterns and create routines that work best for your body.
Two Expert Rhythms
Two Expert Rhythms
Expert pre-set pumping rhythms crafted for elevated comfort and efficiency.
Expert pre-set pumping rhythms crafted for elevated comfort and efficiency.
Three Standard Modes
Three Standard Modes
Switch between Stimulation, Expression or Mixed.
Switch between Stimulation, Expression or Mixed.

Smart Pumping. App Control.

Track, control, and pump smarter – from your phone.

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Auto Mode Switching


Watch your output in real time with clear, live updates.

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Real-Time Milk Tracking


Watch your output in real time with clear, live updates.

Translation missing: en.general.aria.content_image

Full Collector Alerts


Get notified when the pump is full, without worrying about leaks.

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Visualized Lactation Data


Watch your output trends clearly with charts and timelines.

Engineered for Comfort
Soft, flexible flange contours to your unique shape.
Slim. Smart. In Control.
Slip it under any outfit, in harmony with your day.
Everything You Need in One Place
What Others Say

Find Your Perfect Breast Pump

Momcozy Breast Pump Comparison

FAQs

What is an ultra slim breast pump?

An ultra slim breast pump is a wearable, in-bra cup with a thinner profile than a typical all-in-one, so it sits flatter under clothes. Air 1 is 61 mm — built for UK mums who express at work or away from home and do not want a bulky outline. A slim breast pump is about how it sits, not about being the quietest motor.

What makes Air 1 different from other slim wearable breast pumps?

Air 1 is Momcozy’s slimmest all-in-one wearable at 61 mm, about 22% slimmer than M9. You get a transparent top to centre the nipple, a 180 ml collector, and a charging case for up to 15 sessions. Choose it when a lower in-bra profile is the job. If a quieter motor matters more than how slim the cup sits, M9 is the better match.

Is the Air 1 ultra slim breast pump good for pumping at work?

Yes. That is the job it is built for. The 61 mm cup sits in a nursing bra under work clothes, so you can keep pumping at work without a bulky outline. The charging case covers a run of sessions away from a plug. If a shared room means noise matters more than profile, choose M9.

Is the Momcozy Air 1 easy to use for first-time mums?

Yes. The transparent top lets you see the nipple is centred before you start — usually the hardest step on a wearable. There are five parts to wash, buttons on the cup, and the app only if you want it. You can express without opening your phone.

How do I use the Air 1 ultra-slim breast pump?

  1. Wash and assemble the five milk-contact parts. Keep the motor dry.
  2. Place the cup in your bra. Use the transparent top to centre the nipple in the tunnel.
  3. Turn on. Choose Stimulation, Expression or Mixed on the cup or in the app, then pick a suction level that feels comfortable — not the highest.
  4. When the 180 ml collector is full, the app can alert you. Switch off, take the motor off, then pour.

How do I centre the flange on the Air 1?

Look through the transparent top and check the nipple sits in the middle of the tunnel, not pulled to one side. Measure nipple diameter, not bra cup. Air 1 ships with a 24 mm flange and 17/19/21 mm inserts. Pain, a white ring, or too much areola being pulled in means resize before you turn suction up.

Can I track expressing sessions and milk volume?

Yes. The Momcozy app can switch modes, show milk volume as you go, alert you when the collector is full, and keep a session history. The pump still runs from the buttons on the cup if you would rather not use the phone.

How long does the Air 1 charging case last?

The case holds enough power for up to 15 sessions of about 30 minutes. Seat each pump so the contacts line up; the case tops them up and stores them for a work day or a few days out. Charge the case from a plug at home, then take it with you.

How do I clean and sterilise the Air 1 ultra-slim breast pump?

Take the motor off first and wipe it dry only — never soak it. Rinse the five milk-contact parts (collector, back cover, flange, valve, diaphragm) straight after use, wash in warm soapy water, then sterilise with steam or a cold-water method. Air-dry fully before you assemble.

How customers say about

4.8
Rated 4.8 out of 5 stars
Based on 155 reviews
100%would recommend this product
Slide 1 selected
155 reviews
  • D
    Dahian
    Flag of United States
    Verified Buyer
    Reviewing
    Momcozy Air 1 Ultra-slim Breast Pump
    I recommend this product
    Rated 5 out of 5 stars
    1 week ago
    Super prcticas y de buen tama?o

    Super prcticas y de buen tama?o

  • JB
    Jayne B.
    Flag of United States
    Verified Buyer
    Reviewing
    Momcozy Air 1 Ultra-slim Breast Pump
    I recommend this product
    Rated 5 out of 5 stars
    2 weeks ago
    Recommend

    I have never written a review on Amazon but I felt the need to this time. I was using the Lansinoh breast pump and I noticed my output was horrible. Prior to that I used the Eufy S1 Pro- which was a great pump but it broke because I dropped it on the floor by accident. I recently purchased the Momcozy Air 1 breast pump and its been so good. Its thin, much thinner than the other pumps, I like how it automatically switches between stimulation and expression and its comfortable. You can control the settings from your phone. My output has been great again.

  • E
    EC
    Flag of United Kingdom
    Verified Buyer
    Reviewing
    Momcozy Air 1 Ultra-slim Breast Pump
    I recommend this product
    Rated 5 out of 5 stars
    2 weeks ago
    Perfect (except app, but doesn't detract)

    Only wearable I tried but perfect. Functions as expected, easy to charge and portable with charging case very useful. Definitely get a good few charges out of the case. Easy to pour into bottles.Chose this due to it being one of the (or the?) thinnest wearable but even still it's obvious when you're wearing it. (Wear a bulky t-shirt but it does have an ON-light indicator.) Also it's obvious when it's on as it definitely makes a noise - but I can imagine other cheaper variants are even bulkier and noisier and I think you have to be realistic!The wearable nature + thin profile + fact that you can control it from an app made it usable in front of others and where necessary in public. That's huge.Comfort level good though realistically I only used the lowest settings. Lowest settings are somewhat stronger than Spectra's lowest settings.There are 4 parts to clean and while at first fiddly you quickly get the hang of how to dis/assemble it. Washing every time is too much, fridge hack works well (stands by itself without motor).Negatives: Sensors of milk level and/or app software is a bit buggy. The app claims to know when a let-down happens and claims to know approximate milk level, and uses this to automatically change modes under certain Auto settings. Well... it didn't always know when a let down happened, so Auto modes end up a bit buggy/lag. It also wasn't that accurate at judging milk levels. I gave up on the Auto modes pretty quick and switched 'manually' through the app and…

  • A
    Aaron
    Flag of Australia
    Verified Buyer
    Reviewing
    Momcozy Air 1 Ultra-slim Breast Pump
    I recommend this product
    Rated 5 out of 5 stars
    2 weeks ago
    Super discreet and convenient wearable pump!

    This wearable breast pump is so convenient because it fits right inside your bra hands-free. The ultra-slim design isn't bulky at all, which makes it much easier to wear around the house. Connecting it to the smartphone app lets you track sessions and switch modes without fiddling around. The wireless charging storage case is super sleek and keeps everything charged up for on-the-go use. Suction feels comfortable yet effective, and the full-collector alerts give great peace of mind. Cleaning the parts is straightforward once you get used to taking it apart.?Pros:Hands free, low profile fit inside clothing?Wireless charging case makes travel and storage easy?App control and milk tracking features are super helpful?Cons:On the pricier side compared to basic wearable pumps

  • AP
    Alba P.
    Flag of Spain
    Verified Buyer
    Reviewing
    Momcozy Air 1 Ultra-slim Breast Pump
    I recommend this product
    Rated 5 out of 5 stars
    2 weeks ago
    Muy bueno

    Ligero y muy til . No es de los ms silenciosos pero funciona muy bien y el estuche con carga es ideal.

  • PH
    Purple H.
    Flag of Australia
    Verified Buyer
    Reviewing
    Momcozy Air 1 Ultra-slim Breast Pump
    I recommend this product
    Rated 5 out of 5 stars
    2 weeks ago
    Incredibly slim and private wearable pump

    I got this hands-free milk extractor to help manage my pumping schedule after returning to my office job, and the compact profile is genuinely fantastic. Measuring just over 6cm in depth, it sits much closer to the chest than older, bulky models, meaning I can wear it beneath my standard work blouses without looking strangely misshapen. It allows me to express comfortably at my desk or during team meetings with total peace of mind, granting me a level of personal freedom I did not think was possible while nursing.The clear upper window is an absolute masterstroke of design that completely removes the usual guesswork from setting things up. Being able to peek down and immediately verify that everything is centered perfectly ensures I get the best possible output without any pinching or friction discomfort. It is incredibly reassuring to monitor the liquid levels pooling in the container in real-time without having to detach the unit and disrupt the suction cycle halfway through.Managing the settings via my smartphone has made my daily sessions feel incredibly streamlined and personalized. The companion application allows me to adjust the rhythm and suction depth directly from my screen, while the automatic container-full notifications prevent any stressful overflows while I am distracted with typing.The accompanying portable power cradle provides a massive amount of backup energy, allowing me to get through nearly a week of commutes and shifts without ever hunting for an…