Introduction
Thank you for choosing the Marchred 300ML Essential Oil Diffuser. This ultrasonic aromatherapy diffuser is designed to enhance your environment by dispersing a cool mist of water and essential oils, improving air quality and creating a pleasant atmosphere. This manual provides detailed instructions for safe and effective use of your device.
Safety Information
Please read all safety instructions carefully before operating the diffuser to prevent injury or damage.
- Avoid direct skin contact with undiluted essential oils.
- Keep the diffuser out of reach of children and pets.
- Ensure proper ventilation in the area where the diffuser is used.
- Do not exceed the maximum water level of 300ml to prevent malfunction or leakage.
- Always unplug the diffuser before cleaning or refilling.
- Do not immerse the main unit in water or other liquids.
Package Contents
Verify that all items are present in the package:
- Marchred 300ML Essential Oil Diffuser Unit
- Power Adapter
- Remote Control
- User Manual
Product Overview
The Marchred 300ML Essential Oil Diffuser utilizes ultrasonic technology to produce a fine, cool mist. Key features include:
- Capacity: 300ML water tank for extended operation.
- Waterless Auto-Off: Automatically shuts down when water runs out for safety.
- LED Lighting: Features 7 color-changing LED lights to create a soothing ambiance.
- Remote Control: Conveniently adjust mist modes, light settings, and timers.
- Quiet Operation: Designed to run smoothly with minimal noise.

Image: Marchred 300ML Essential Oil Diffuser with its remote control, showcasing its blue LED light setting.

Image: The diffuser operating quietly, emitting a gentle mist.
Setup Instructions
Follow these steps to set up your diffuser for first use:
- Place the diffuser on a flat, stable, and water-resistant surface.
- Remove the top cover by lifting it upwards.
- Connect the AC adapter to the DC jack located at the bottom of the diffuser unit.
- Fill the water tank with clean tap water. Do not exceed the 'MAX' water level line (300ML).
- Add 2-3 drops of your preferred essential oil per 100ml of water. (Essential oils are not included).
- Replace the top cover securely, ensuring it is properly aligned.
- Plug the power adapter into a standard wall outlet.

Image: A visual guide illustrating the four steps for diffuser setup: connecting power, adding water and essential oil, activating mist, and controlling the light.

Image: Illustration of the 300ML water tank capacity and the importance of not exceeding the maximum fill line for optimal mist production.
Operating Instructions
Your diffuser can be operated using the buttons on the unit or the included remote control.
Using the Diffuser Buttons:
- MIST/TIMER Button:
- Press once to turn on continuous mist.
- Press repeatedly to cycle through timer settings (e.g., 2H, 4H) or intermittent mist modes.
- Press and hold for 2 seconds to turn off the mist function.
- LIGHT Button:
- Press once to turn on the LED light with automatic color cycling.
- Press repeatedly to manually select a specific color or adjust brightness.
- Press and hold for 2 seconds to turn off the light function.
Using the Remote Control:
Ensure the battery insulation sheet is removed from the remote control before first use.
- ON/OFF: Powers the diffuser on or off.
- Intermittent/Continuous: Toggles between intermittent and continuous mist modes.
- Timing (2H/4H): Sets the diffuser to operate for 2 or 4 hours.
- Big/Small: Adjusts the mist output intensity (if applicable).
- Light: Controls the LED light functions, similar to the light button on the unit.

Image: The remote control for the diffuser, showing buttons for various functions including power, mist settings, timer, and light control.

Image: Detailed explanation of the Mist and Light button functionalities located on the diffuser unit.
Maintenance
Regular cleaning helps maintain the diffuser's performance and extends its lifespan.
Cleaning the Diffuser:
- Unplug the diffuser from the power outlet and remove the top cover.
- Empty any remaining water from the tank.
- Wipe the inside of the water tank with a soft, damp cloth.
- For stubborn residue or mineral buildup on the ultrasonic plate (the small ceramic disc at the bottom of the tank), gently clean it with a cotton swab dipped in a small amount of white vinegar.
- Rinse the tank thoroughly with clean water, being careful not to get water into the air outlet.
- Allow all parts to air dry completely before reassembling or storing.
Important: Do not use harsh detergents, abrasive cleaners, or corrosive liquids. Do not immerse the entire diffuser unit in water.
Storage:
When not in use for an extended period, clean the diffuser thoroughly, ensure it is completely dry, and store it in a cool, dry place away from direct sunlight.
Troubleshooting
If you encounter issues with your diffuser, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| No mist or weak mist | Insufficient water Water level too high Ultrasonic plate dirty Top cover not aligned | Add water to the tank Ensure water is below MAX line Clean the ultrasonic plate Realign the top cover securely |
| Water leakage | Overfilled water tank Top cover not secure Diffuser on uneven surface | Do not exceed MAX water line Ensure top cover is properly sealed Place diffuser on a flat, stable surface |
| No power | Power adapter not connected No power from outlet | Check power adapter connection to diffuser and wall outlet Test outlet with another device |
| Remote control not working | Battery insulation sheet still in place Low battery | Remove battery insulation sheet Replace battery |
Specifications
- Brand: Marchred
- Model Name: 606727972400
- Capacity: 300 Milliliters
- Product Dimensions: 5.24"L x 5.24"W x 3.94"H
- Power Source: Corded Electric
- Special Features: Automatic Shut-Off, Cool Mist, Timer Setting
- Material: Acrylonitrile Butadiene Styrene (ABS), Polypropylene (PP)
- Material Type Free: BPA Free
- Light Source Type: LED (7 colors)
- Coverage: 40 Square Feet
- Wattage: 10 watts
- Item Weight: 12.6 ounces (0.36 Kilograms)

Image: Product dimensions of the diffuser, illustrating its compact size.
Warranty and Support
Marchred is committed to providing high-quality products and customer satisfaction. Your purchase is backed by a 100% risk-free guarantee.
If you have any questions, concerns, or require assistance with your Marchred Essential Oil Diffuser, please do not hesitate to contact Marchred customer support. We aim to resolve your inquiries within 24 hours.
For support, please refer to the contact information provided with your product packaging or visit the official Marchred store online.