Introduction
The Momcozy M5 Hands-Free Wearable Breast Pump is designed to provide a comfortable and efficient breast pumping experience for mothers on the go. Its compact, lightweight design and advanced features aim to make breastfeeding journeys more convenient and discreet.
Key features include a double-sealed flange for baby-like comfort, three modes (Stimulation, Expression, Mixed) with nine suction levels, and micro-vibration technology to promote milk secretion.
Product Overview

Image: The Momcozy M5 pump, its compact carrying case, and a nipple measurement tool.

Image: Visual representation of the Momcozy M5's key benefits: lighter weight, comfortable pumping, easy cleaning, stable battery life, and quiet operation.
Important Safety Information
Always read and follow all instructions and warnings before using the Momcozy M5 Breast Pump. Keep the device out of reach of children. Do not immerse the motor unit in water. Use only the provided charging cable.
- Ensure all parts are clean and dry before assembly and use.
- Do not use while sleeping or overly drowsy.
- Consult a healthcare professional if you experience pain or discomfort.
- Discontinue use if the device is damaged.
Package Contents
Your Momcozy M5 Hands-Free Wearable Breast Pump package includes the following components:

Image: A detailed breakdown of all components included in a single Momcozy M5 pump package, such as the motor, flange, milk collector, valves, and various accessories.
- 1 x M5 Pump Motor
- 1 x 24mm Flange
- 1 x Milk Collector Cup (160ml / 5.6 oz capacity)
- 1 x Diaphragm
- 2 x Valves
- 3 x Flange Inserts (17mm, 19mm, 21mm)
- 1 x Type-C Charging Cable
- 1 x Nipple Measure Tool / Size Ruler
- 1 x Portable Carrying Case
Setup and Assembly
Before first use, sterilize all parts that come into contact with breast milk (flange, milk collector, valves, diaphragm). The motor unit should only be wiped clean.
- Clean and Sterilize: Wash all milk-contacting parts with warm soapy water and rinse thoroughly. Sterilize by boiling for 3-5 minutes or using a sterilizer. Ensure all parts are completely dry before assembly.
- Assemble Diaphragm and Valve: Insert the diaphragm securely into the milk collector. Attach the valve to the bottom of the flange.
- Connect Flange to Collector: Align the heart-shaped indicators on the flange and milk collector, then press them firmly together until sealed.
- Attach Motor Unit: Place the assembled milk collector and flange onto the pump motor unit. Ensure it clicks securely into place.
- Choose Correct Flange Size: Use the provided nipple measure tool to determine your correct nipple size. Select the appropriate flange insert (17mm, 19mm, or 21mm) if the standard 24mm flange is not suitable. Insert the chosen flange into the main flange.

Image: Instructions on how to use the nipple measure tool and select the appropriate flange size for optimal comfort and milk output.
Operating Instructions
The Momcozy M5 offers three pumping modes and nine suction levels for a personalized experience.
- Power On/Off: Press and hold the power button on the motor unit to turn the pump on or off.
- Select Mode: Press the mode button to cycle through the three modes:
- Stimulation Mode: Fast and shallow suction to stimulate milk let-down.
- Expression Mode: Slower and deeper suction for efficient milk expression.
- Mixed Mode: A combination of stimulation and expression for optimal pumping.
- Adjust Suction Level: Use the '+' and '-' buttons to adjust the suction intensity from level 1 (lowest) to level 9 (highest). Start with a comfortable level and gradually increase as needed.
- Wearable Use: Once assembled and powered on, place the pump inside your nursing bra, ensuring the flange is centered on your nipple. The discreet design allows for hands-free pumping.
- Monitor Progress: The digital display shows the current mode, suction level, and battery life.
- Auto Shut-off: The pump features an auto shut-off after 30 minutes to prevent over-pumping and conserve battery life.

Image: The Momcozy M5's control panel, illustrating the three distinct pumping modes and nine adjustable suction levels.

Image: Information on the Momcozy M5's battery life, indicating 2 hours for a full charge, providing 5-6 pumping sessions, and featuring a built-in timer.

Image: A comparison of noise levels, highlighting the Momcozy M5's quiet operation (20dB) compared to other pumps (50-70dB), making it suitable for nighttime pumping.
Cleaning and Maintenance
Proper cleaning and maintenance are crucial for the longevity and hygiene of your breast pump.
- Disassembly: Carefully detach the motor unit from the milk collector. Separate all milk-contacting parts: flange, milk collector, diaphragm, and valves.
- Washing: Wash all disassembled parts (except the motor unit) with warm, soapy water immediately after each use. Use a soft brush for hard-to-reach areas. Rinse thoroughly with clean water.
- Sterilization: Sterilize parts regularly (daily or as recommended by your healthcare provider) by boiling for 3-5 minutes, using a steam sterilizer, or a dishwasher (top rack only, if specified as dishwasher safe).
- Drying: Air dry all parts completely on a clean drying rack. Avoid using cloth towels as they may leave lint.
- Motor Unit Care: Wipe the motor unit with a clean, damp cloth. Do not immerse it in water or sterilize it.
- Storage: Store all clean and dry parts in a clean, dry place or in the provided carrying case.

Image: The disassembled parts of the Momcozy M5 pump submerged in water, illustrating the ease of cleaning due to minimal components.
Troubleshooting
If you encounter any issues with your Momcozy M5 Breast Pump, refer to the following common solutions:
| Issue | Possible Cause | Solution |
|---|---|---|
| No suction or weak suction | Improper assembly; Damaged valve/diaphragm; Incorrect flange size; Low battery | Reassemble all parts correctly, ensuring tight seals. Check valve/diaphragm for tears and replace if necessary. Verify flange size using the tool. Charge the pump fully. |
| Milk leakage | Improper assembly; Overfilling the collector; Incorrect wearing position | Ensure all parts are securely sealed. Do not exceed the maximum fill line (160ml). Adjust pump position in your bra for a snug fit. |
| Pump not turning on | Low battery; Faulty charging cable/adapter | Charge the pump for at least 2 hours. Try a different USB-C cable or power adapter. |
| Unusual noise | Loose parts; Motor issue | Check all connections for tightness. If noise persists, contact customer support. |
If the issue persists after trying these solutions, please contact Momcozy customer support.
Specifications
| Feature | Detail |
|---|---|
| Model Number | M5-NN |
| Product Dimensions | 5.91 x 5.91 x 5.91 inches |
| Item Weight | 1.48 pounds |
| Material Type | Silicone |
| Battery | 1 Lithium Polymer battery (included) |
| Charging | USB-C |
| Modes | Stimulation, Expression, Mixed |
| Suction Levels | 9 Levels |
| Flange Diameter | 24 Millimeters (with 17/19/21mm inserts) |
| Dishwasher Safe | Yes (for non-motor parts) |
Warranty and Support
Momcozy products are designed with quality and customer satisfaction in mind. For warranty information, product support, or any inquiries, please visit the official Momcozy website or contact their customer service team directly.
Online Resources: For additional tips, FAQs, and video tutorials, please refer to the Momcozy official store or support pages.





