Earnest Living ROSD02-CA
Earnest Living Rose Essential Oil Diffuser 150ml
Model: ROSD02-CA
Introduction
The Earnest Living Rose Essential Oil Diffuser is a 150ml ultrasonic aromatherapy humidifier designed to enhance your environment with soothing mist and ambient lighting. Its unique rose-inspired design adds an elegant touch to any space. This manual provides detailed instructions for safe and effective use of your diffuser.

Image: The Earnest Living Rose Essential Oil Diffuser in frosted white, showcasing its elegant design.
Safety Information
Please read all safety warnings before operating this device.
- Avoid direct skin contact with undiluted essential oils.
- Ensure proper ventilation during use.
- Keep out of reach of children and pets.
- This device is not cordless or rechargeable; it must remain plugged in during use.
- Use only clean tap water or distilled water. Do not use hot water.
- Do not exceed the maximum water level indicated.
- Clean the diffuser regularly to prevent mineral buildup and ensure optimal performance.
Setup
Follow these steps to set up your Earnest Living Rose Essential Oil Diffuser:
- Place the Diffuser: Position the diffuser on a flat, stable surface away from direct sunlight, heat sources, and electronic devices.
- Remove the Cover: Gently lift the rose-shaped top cover and the inner lid to expose the water tank.
- Add Water: Using a measuring cup, fill the water tank with clean tap water or distilled water up to the maximum water level line (150ml). Do not overfill.
- Add Essential Oil: Add 3-5 drops of your preferred essential oil directly into the water tank. Adjust the amount based on personal preference and room size.
- Replace Covers: Place the inner lid back onto the water tank, ensuring it is properly seated. Then, align and replace the rose-shaped top cover.
- Connect Power: Plug the USB power cable into the diffuser's power port and then into a compatible USB power source (e.g., laptop, power bank, or USB wall adapter).

Image: A person adding essential oil to the diffuser's water tank, demonstrating the ease of use.

Image: A visual representation of the diffuser's USB power input, timer settings (1H, 3H, ON), and waterless auto shut-off feature.
Setup and Operation Video
Video: An official demonstration by Earnest Living showing how to set up and operate the Rose Diffuser, including adding water and essential oils, and using the light and mist functions.
Operating Instructions
Your diffuser features intuitive controls for mist and light functions.
Mist Control
- Press the "MIST" button once: The diffuser will start continuous misting. The "ON" indicator light will illuminate.
- Press the "MIST" button a second time: The diffuser will switch to 3-hour misting mode. The "3H" indicator light will illuminate.
- Press the "MIST" button a third time: The diffuser will switch to 1-hour misting mode. The "1H" indicator light will illuminate.
- Press the "MIST" button a fourth time: The diffuser will turn off.
Light Control
The diffuser features a 7-color LED night light with 14 shade shifts.
- Press the "LIGHT" button once: The LED light will turn on and cycle through all 7 colors automatically.
- Press the "LIGHT" button again: The light will pause on the current color.
- Continue pressing the "LIGHT" button: Cycle through the fixed colors (7 colors, each with a bright and dim option, totaling 14 shades).
- Press and hold the "LIGHT" button for 2 seconds: The light will turn off.

Image: The diffuser showcasing its 7-color ambient light feature, with options for auto-cycling or fixed colors.
Maintenance
Regular cleaning helps maintain the diffuser's performance and extends its lifespan.
Daily Maintenance
- Empty any remaining water from the tank.
- Wipe the inside of the water tank with a clean, soft cloth.
Weekly Cleaning
- Ensure the diffuser is unplugged before cleaning.
- Remove the top cover and inner lid.
- Pour 100ml of clean water into the tank.
- Add 1-2 teaspoons of white vinegar to the water.
- Let the solution sit for 10-15 minutes to loosen mineral buildup.
- Carefully drain the water from the tank, avoiding the air outlet.
- Wipe the inside of the tank, especially the ultrasonic disc, with a soft cloth or cotton swab. Do not scrub or use abrasive materials.
- Rinse the tank with clean water and wipe dry.
- Ensure all parts are completely dry before reassembling and storing or using again.
Note: Do not immerse the diffuser base in water. Do not use detergents, solvents, or abrasive cleaning agents.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| No mist or low mist output |
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| No power / Lights not working |
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| Unusual odor |
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| Water leakage |
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Specifications
| Feature | Detail |
|---|---|
| Brand | Earnest Living |
| Model Name | ROSD02-CA |
| Color | Frosted White |
| Material | Plastic (BPA-Free PP) |
| Power Source | USB Powered |
| Capacity | 150 Milliliters |
| Product Dimensions | 5.51"L x 5.51"W x 5.51"H |
| Coverage | Small room |
| Auto Shutoff | Yes (when water runs low or timer ends) |
| Item Weight | 12.3 ounces (0.35 Kilograms) |
| Light Feature | 7-Color LED Night Light (14 shade shifts) |
| Timer Settings | 1H / 3H / ON (Continuous) |
Warranty and Support
For warranty information and customer support, please refer to the product packaging or contact Earnest Living customer service directly. Contact details are typically provided with your purchase or on the official Earnest Living website.
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