1. Introduction
The Stewerom Smart Car Air Freshener is designed to enhance your driving environment with adjustable fragrance and intelligent air purification. Crafted from high-quality aluminum alloy, this device offers a durable and elegant solution for maintaining fresh air in your vehicle. It features a built-in intelligent purification system, multiple functional modes, quiet operation, and a long-lasting battery.

Image: Overview of the Stewerom Smart Car Air Freshener, emphasizing its metal shell, long battery life, and ultrasonic atomization technology.
2. Safety Information
- Read all instructions before use.
- Keep out of reach of children and pets.
- Do not disassemble or modify the device.
- Use only the provided or recommended essential oil bottles.
- Avoid direct contact of essential oils with skin or eyes. In case of contact, rinse thoroughly with water.
- Ensure the device is securely installed in the car's air outlet to prevent dislodgement during driving.
- Do not expose to extreme temperatures or direct sunlight for prolonged periods.
- Dispose of batteries and the device according to local regulations.
3. Package Contents
Verify that all items are present in your package:
- 1 x Smart Car Air Freshener Device
- 3 x Essential Oil Bottles (Fresh, Intense, Ocean Flavour)
- 1 x USB Type-C Charging Cable
- 1 x User Manual (this document)

Image: The Smart Car Air Freshener device shown alongside three essential oil bottles, representing the typical package contents.
4. Setup Instructions
- Prepare the Essential Oil Bottle: Unscrew the cap from one of the essential oil bottles. Hold the bottom of the essential oil bottle and open it counterclockwise to remove the inner stopper.
- Insert the Oil Bottle: Carefully insert the prepared essential oil bottle into the bottom of the Smart Car Air Freshener device. Ensure it is seated firmly.
- Install in Vehicle: Place the Smart Car Air Freshener securely into a suitable car air outlet. The device is designed to fit most horizontal, round, or oblique air outlets.
- Charge the Device: Before first use, ensure the device is fully charged using the provided Type-C charging cable.

Image: Step-by-step guide illustrating the process of preparing and inserting an essential oil bottle into the diffuser.

Image: Detailed diagram demonstrating the correct method for installing the essential oil bottle into the device, accompanied by the three included scent options.

Image: The diffuser shown compatible with different car air outlet designs, indicating versatile placement options.
5. Operating Instructions
5.1 Power On/Off and Automatic Operation
The Smart Car Air Freshener features an intelligent sensor that automatically starts spraying fragrance when the vehicle is in motion and stops when the vehicle is stationary or turned off. This ensures efficient use of fragrance and battery life.

Image: The diffuser highlighting its intelligent start-stop functionality, which activates with vehicle movement and monitors air conditions.

Image: The diffuser actively spraying fragrance, illustrating its intelligent sensor capabilities for automatic operation based on vehicle status.
5.2 Adjusting Fragrance Intensity
The device offers three levels of adjustable intensity, indicated by different ambient light colors. Press the control button on the device to cycle through the modes:
- Green Light: Sprays once every 300 seconds (lowest intensity).
- Blue Light: Sprays once every 90 seconds (medium intensity).
- Purple Light: Sprays once every 10 seconds (highest intensity).

Image: Visual representation of the three ambient light colors (Purple, Blue, Green) and their associated fragrance spray frequencies, allowing users to adjust intensity.

Image: Close-up views of the diffuser's light indicators for Green, Blue, and Purple, detailing the corresponding spray frequencies for each intensity level.
6. Maintenance
- Cleaning: Wipe the exterior of the device with a soft, dry cloth. Do not use abrasive cleaners or immerse the device in water.
- Essential Oil Replacement: When an essential oil bottle is empty, replace it by following the "Setup Instructions" in reverse to remove the old bottle, and then insert a new one.
- Charging: Recharge the device when the battery indicator shows low power. Use a standard USB Type-C charger.
7. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Device not spraying fragrance. |
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| Weak or no scent. |
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| Device not charging. |
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8. Specifications
| Brand | Stewerom |
| Model Name | automotive-aroma-diffusers |
| Item Model Number | difusores-aroma-automoción |
| Material | Aluminum |
| Power Source | Battery Powered (1 Lithium Ion battery included) |
| Special Feature | Battery Powered, Silent Operation, Auto Shutoff |
| Product Dimensions | 4.7"L x 2"W x 2"H |
| Item Weight | 6.7 ounces |
| Capacity | 500 Milliliters |
| Wattage | 12 watts |
| Number of Items | 4 (Diffuser + 3 Scent Bottles) |
| Date First Available | January 14, 2024 |

Image: Key features of the diffuser including Type-C charging, three intensity levels, metal construction, and smart functionality.
9. Warranty and Support
For warranty information and customer support, please refer to the product packaging or contact Stewerom customer service directly. Keep your purchase receipt as proof of purchase for any warranty claims.
Return Policy: This product typically includes a 30-day return/replacement policy from the date of purchase, subject to seller terms and conditions.





