1. Important Safety Instructions
Please read all instructions carefully before using the dehumidifier. Retain this manual for future reference.
- Ensure the power supply matches the voltage specified on the rating label.
- Do not operate the unit with a damaged cord or plug.
- Keep the unit upright during transport and operation.
- Do not block air inlets or outlets.
- Always unplug the unit before cleaning or servicing.
- This appliance uses R290 refrigerant. Handle with care and ensure proper ventilation.
- Keep children away from the appliance.
2. Product Components
Familiarize yourself with the parts of your COMFEE' dehumidifier.

Figure 2.1: Front view of the COMFEE' MDDN-12DEN7 dehumidifier, showing the water tank level indicator.

Figure 2.2: Top view of the dehumidifier with the integrated handle extended for easy portability.
- Control Panel with LED Display
- Air Outlet (Top)
- Integrated Handle
- Air Inlet (Rear)
- Washable Air Filter
- Water Tank (2.1 Liters capacity)
- Water Level Indicator
- Continuous Drainage Outlet
- Casters (Wheels)
3. Setup Guide
Follow these steps to set up your dehumidifier for first use.
- Unpacking: Carefully remove the dehumidifier from its packaging. Retain packaging for future storage or transport.
- Positioning: Place the unit on a firm, level surface in the desired location. Ensure there is at least 20 cm (8 inches) of space around the unit for proper airflow.
- Power Connection: Plug the power cord into a grounded electrical outlet.
- Initial Check: Ensure the water tank is correctly inserted and the continuous drainage cap is securely closed if not using continuous drainage.

Figure 3.1: Image illustrating the compact dimensions of the dehumidifier (32x21.5x42 cm), highlighting its portability with handle and casters.
4. Operating Instructions
Learn how to operate your dehumidifier effectively.
4.1 Control Panel Overview

Figure 4.1: Close-up of the LED control panel, showing humidity display and control buttons.
- POWER Button: Turns the unit ON/OFF.
- HUMIDITY +/- Buttons: Adjusts the desired humidity level (range typically 30% to 80% RH).
- CONT (Continuous) Mode: Activates continuous dehumidification regardless of the set humidity level.
- TIMER Button: Sets the 24-hour ON/OFF timer.
- Bucket Full Indicator: Illuminates when the water tank is full and needs emptying.
- Defrost Indicator: Illuminates when the unit is in defrost mode.
4.2 Setting Desired Humidity
- Press the POWER button to turn on the unit.
- Use the HUMIDITY +/- buttons to set your desired humidity level. The unit will operate until the room humidity reaches this level, then cycle on/off to maintain it.
4.3 Continuous Drainage
For extended operation without emptying the water tank, use the continuous drainage option.
- Remove the rubber cap from the continuous drainage outlet at the back of the unit.
- Connect a suitable drainage hose (not included) to the outlet. Ensure the hose is sloped downwards to allow gravity drainage.
- Direct the hose to a floor drain or a large container.

Figure 4.2: Close-up of the continuous drainage outlet at the rear of the dehumidifier.
4.4 Automatic Shut-off and Restart
- The unit will automatically shut off when the water tank is full or the desired humidity level is reached.
- It will automatically restart when the tank is emptied and reinserted, or when the humidity rises above the set level.
- The unit features auto-restart after a power outage, resuming previous settings.
5. Maintenance
Regular maintenance ensures optimal performance and longevity of your dehumidifier.
5.1 Cleaning the Air Filter
The air filter should be cleaned every two weeks or more frequently depending on usage.
- Turn off the dehumidifier and unplug it from the power outlet.
- Remove the air filter from the rear of the unit (refer to Figure 5.1).
- Wash the filter with warm, soapy water. Rinse thoroughly and allow it to air dry completely before reinserting.
- Reinstall the dry filter into the unit.

Figure 5.1: Rear view of the dehumidifier showing the removable air filter for cleaning.
5.2 Emptying the Water Tank
When the "Bucket Full" indicator illuminates, the water tank needs to be emptied.
- Gently pull out the water tank from the front of the unit.
- Carefully carry the tank to a sink or drain and empty the collected water.
- Reinsert the empty water tank firmly into the unit. The unit will resume operation.

Figure 5.2: Image showing the water tank being removed from the dehumidifier for emptying.
5.3 Cleaning the Unit Exterior
Wipe the exterior with a soft, damp cloth. Do not use harsh chemicals or abrasive cleaners.
6. Troubleshooting Guide
Before contacting customer service, refer to this guide for common issues.
| Problem | Possible Cause | Solution |
|---|---|---|
| Dehumidifier does not turn on. | No power, power cord loose, water tank full or incorrectly inserted. | Check power connection, empty and reinsert water tank. |
| No water collected. | Room humidity too low, temperature too low, air filter clogged, unit in defrost mode. | Increase desired humidity, clean air filter, allow unit to defrost. |
| Unit is noisy. | Unit not on a level surface, air filter clogged. | Place on a level surface, clean air filter. |
| "Bucket Full" indicator is on, but tank is not full. | Water tank sensor malfunction or debris. | Remove and reinsert tank, check for debris around sensor. |
7. Product Specifications
- Model: MDDN-12DEN7
- Dehumidification Capacity: 12 Liters/day
- Water Tank Volume: 2.1 Liters
- Recommended Room Size: 20-35 m² (up to 50m² max)
- Dimensions (L x W x H): 32 x 21.5 x 42 cm
- Weight: 11.25 kg
- Power Supply: 230V
- Rated Power: 340 Watts
- Airflow Capacity: 118 m³/h
- Noise Level: 46 dB
- Refrigerant: R290 (Eco-friendly)
- Special Features: Anti-overflow, Automatic shut-off, Adjustable humidity control, Automatic defrost, Built-in casters and handle.
8. Warranty and Support
COMFEE' offers a 2-year manufacturer's warranty for this product. For warranty claims, technical support, or spare parts inquiries, please contact COMFEE' customer service. Keep your proof of purchase for warranty validation.
Visit the official Comfee Store for more information and product registration.
9. Instructional Videos
Watch these videos for visual guidance on using your dehumidifier.
9.1 Discover the Benefits of a Pro Breeze Dehumidifier
This video demonstrates the general benefits and features of a dehumidifier, including combating mold, reducing condensation, and ease of use with an LED touch panel and timer. While featuring a Pro Breeze model, the principles apply to the COMFEE' dehumidifier's function.





