1. Introduction
This manual provides instructions for the safe and effective use of your Serene House Astro Ultrasonic Aroma Diffuser, Model 171201058. This device utilizes ultrasonic technology to disperse a fine mist of water and essential oils into the air, enhancing your environment.
2. Safety Precautions
- Read all instructions before use.
- Place the diffuser on a flat, stable surface away from direct sunlight, heat sources, and air conditioning vents.
- Do not place the diffuser on carpet or any surface that may block the air intake vent at the bottom.
- Use only clean tap water or distilled water. Do not use hot water.
- Do not exceed the maximum water level indicated inside the water tank.
- Use only 100% pure essential oils. Avoid synthetic fragrances or oils that may contain other chemicals.
- Keep out of reach of children and pets.
- Unplug the diffuser from the power outlet before cleaning or when not in use.
- Do not immerse the diffuser base in water or any other liquid.
- If the diffuser emits an unusual smell or sound, or if smoke appears, unplug it immediately.
3. Package Contents
Please check that all items are present in the package:
- Serene House Astro Ultrasonic Aroma Diffuser Unit (Model 171201058)
- AC Power Adapter
- User Manual
4. Product Overview
The Serene House Astro Diffuser features a white glass dome and a dark wood-grain base, integrating both aesthetic design and functional controls.

Image 1: Front view of the Serene House Astro Ultrasonic Aroma Diffuser. The image displays the diffuser's elegant design with a translucent white glass top and a dark wood-textured base. On the front of the base, a cloud-like logo is visible. To the right, three control buttons are arranged vertically: a power button (bottom), a timer button (middle), and a light button (top). Above the timer button, indicators for 'ON', '60', '90', and '120' minutes are present, suggesting timer settings.
Components:
- Glass Dome: The upper part of the diffuser, through which the mist and light are emitted.
- Base: Contains the water tank, ultrasonic disc, and control panel.
- Water Tank: Located inside the base, holds water and essential oils.
- Mist Outlet: Opening at the top of the glass dome for mist release.
- Control Buttons: Located on the front of the base for power, timer, and light functions.
5. Setup
- Place the Diffuser: Position the diffuser on a firm, level surface. Ensure it is not near any electronic devices or objects sensitive to moisture.
- Remove the Glass Dome: Carefully lift the glass dome from the base.
- Fill the Water Tank: Using a measuring cup, fill the water tank with clean tap water or distilled water up to the maximum water level line. Do not overfill.
- Add Essential Oils: Add 5-10 drops of your preferred 100% pure essential oil directly into the water tank. Adjust the quantity based on personal preference and room size.
- Replace the Glass Dome: Carefully place the glass dome back onto the base, ensuring it is seated correctly.
- Connect Power: Plug the AC adapter into the power input port on the back of the diffuser base, then plug the adapter into a standard electrical outlet.
6. Operation
Power and Mist Control:
- Press the Power button (
) once to turn on the diffuser in continuous mist mode. The 'ON' indicator light will illuminate.
- Press the Power button again to switch to intermittent mist mode (30 seconds on, 30 seconds off). The 'ON' indicator will remain lit.
- Press the Power button a third time to turn off the diffuser.
Timer Settings:
- While the diffuser is operating, press the Timer button (
) to cycle through the timer options: 60 minutes, 90 minutes, 120 minutes. The corresponding indicator light will illuminate.
- The diffuser will automatically shut off once the selected time has elapsed or when the water level is too low.
Light Control:
- Press the Light button (
) once to turn on the LED light, which will cycle through 7 colors.
- Press the Light button again to pause the light on a specific color.
- Press the Light button a third time to turn off the light function.
7. Maintenance and Cleaning
Regular cleaning is essential to ensure optimal performance and longevity of your diffuser.
- Unplug and Empty: Always unplug the diffuser before cleaning. Lift the glass dome and carefully empty any remaining water from the water tank, pouring away from the air outlet.
- Wipe the Tank: Wipe the inside of the water tank with a soft, damp cloth. For stubborn residue, use a small amount of mild dish soap, then rinse thoroughly.
- Clean the Ultrasonic Disc: The ultrasonic disc (small ceramic disc at the bottom of the water tank) should be cleaned regularly. Dip a cotton swab in white vinegar and gently wipe the surface of the disc to remove any mineral buildup or oil residue. Do not scrape or apply excessive pressure.
- Clean the Exterior: Wipe the exterior of the diffuser with a soft, dry cloth.
- Dry Thoroughly: Ensure all parts are completely dry before reassembling or storing the diffuser.
Important: Do not use harsh detergents, abrasive cleaners, or solvents, as these may damage the diffuser. Do not immerse the base in water.
8. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| No mist or weak mist |
|
|
| No power/light |
|
|
| Water leakage |
|
|
9. Specifications
- Model: 171201058
- Product Dimensions: 5.1 x 5.1 x 8.8 inches
- Weight: 1.4 Pounds
- Material: Glass, Wood
- Mist Modes: Continuous, Intermittent (30 sec on/off)
- Run Time: Up to 4 hours (continuous), Up to 8 hours (intermittent)
- Timer Settings: 60, 90, 120 minutes
- LED Light: 7 color options, color cycle, fixed color, off
- Power Input: AC Adapter (specifications on adapter)
10. Warranty and Support
For warranty information or technical support, please refer to the warranty card included with your product or visit the official Serene House website. You may also contact Serene House customer service directly for assistance with product issues or inquiries.
Serene House Official Website: Visit the Serene House Store on Amazon



