1. Introduction and Overview
The Scentiment Diffuser Pro 2 is an advanced cold-air nebulizing diffuser designed to provide powerful and consistent scent coverage for large spaces. Utilizing innovative cold-air diffusion technology, it preserves the integrity of your fragrance oils without the need for heat or water, ensuring a pure and long-lasting aroma experience.
Key features include:
- Powerful Scent Coverage: Capable of scenting areas up to 5,000 sqft, ideal for homes, spas, gyms, and commercial environments.
- Cold-Air Diffusion Technology: A waterless and heatless method that maintains the therapeutic and aromatic properties of essential and fragrance oils.
- Smart Control: Seamless integration with the Scentiment app and Wi-Fi connectivity for remote scheduling, intensity adjustments, and personalized scent customization.
- HVAC Compatible: Designed for versatile placement, allowing connection to your HVAC system for whole-building scenting or use as a standalone unit.
- Sleek, Minimalist Design: Features a matte black aluminum build with an LED indicator, suitable for both wall-mounting and tabletop display.

Figure 1.1: Front view of the Scentiment Diffuser Pro 2.
2. Safety Information
Please read and understand all safety instructions before operating the Scentiment Diffuser Pro 2. Failure to follow these instructions may result in injury or damage to the product.
- Avoid direct skin contact with undiluted essential oils.
- Keep out of reach of children and pets.
- Ensure proper ventilation during use.
- Use only Scentiment approved fragrance oils or high-quality essential oils specifically designed for nebulizing diffusers.
- Do not submerge the unit in water or any other liquid.
- Unplug the device before cleaning or refilling.
- Do not attempt to disassemble or repair the unit yourself. Contact customer support for assistance.
3. Package Contents
Verify that all items are present in your package:
- Scentiment Diffuser Pro 2 Unit
- Power Adapter
- Empty Fragrance Oil Bottle (pre-installed or separate)
- Magnetic Key (for accessing the fragrance vessel)
- User Manual (this document)
4. Setup
Follow these steps to set up your Scentiment Diffuser Pro 2:
- Unpack the Diffuser: Carefully remove all components from the packaging.
- Access Fragrance Vessel: Use the provided magnetic key to unlock the diffusion head and access the fragrance vessel compartment.
- Fill the Bottle: Remove the empty bottle from the unit. Fill it with your preferred Scentiment fragrance oil. Do not overfill.
- Insert Bottle: Carefully insert the filled bottle back into the diffuser unit. Ensure it is seated securely and the lid is properly attached.
- Connect Power: Plug the power adapter into the diffuser's power port and then into a standard electrical outlet.
- Placement: Place the diffuser on a flat, stable surface or mount it to a wall using the integrated mounting points. Ensure adequate air circulation around the unit.

Figure 4.1: Visual guide for setting up and using the diffuser.
5. Operation
The Scentiment Diffuser Pro 2 offers both manual and smart control options:
5.1 Manual Operation
- Power On/Off: Press the power button on the top of the unit to turn the diffuser on or off.
- Adjust Intensity: Use the 'Intensity' button on the top of the device to cycle through different scent intensity levels (Low, Medium, High). The LED indicator will change to reflect the current setting.
5.2 Smart Control (Scentiment App)
For advanced control and customization, download the Scentiment app from your device's app store. The diffuser connects via Wi-Fi and Bluetooth.
- Download App: Search for 'Scentiment' in the Apple App Store or Google Play Store.
- Pair Device: Follow the in-app instructions to connect your Diffuser Pro 2 to your Wi-Fi network and pair it via Bluetooth. Ensure your device is within range during pairing.
- Customize Scent Experience: Within the app, you can:
- Set custom schedules for operation (e.g., turn on at specific times, days).
- Adjust scent intensity with finer control than manual settings.
- Monitor oil levels (if supported by the app version).
- Access additional features and updates.
Video 5.1: An overview of the Scentiment Diffuser Pro 2 and its benefits, including smart control features.
6. Maintenance
Regular maintenance ensures optimal performance and longevity of your diffuser.
- Refilling Fragrance Oil: When the scent output diminishes or the bottle is empty, refill it following the steps in Section 4.
- Cleaning the Fragrance Bottle: Periodically, or when changing fragrance types, clean the bottle. Remove the bottle, empty any remaining oil, and rinse with rubbing alcohol. Allow to air dry completely before refilling.
- Cleaning the Nozzle/Atomizer: If the diffuser produces little to no mist, the nozzle may be clogged. Remove the fragrance bottle. Fill a clean bottle with rubbing alcohol and run the diffuser on high for 15-30 minutes to clear any blockages.
- Exterior Cleaning: Wipe the exterior of the diffuser with a soft, dry cloth. Do not use abrasive cleaners or allow water to enter the unit.

Figure 6.1: Internal view of the diffuser, highlighting the fragrance bottle.
7. Troubleshooting
If you encounter issues with your Scentiment Diffuser Pro 2, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| No mist or weak scent output | Low oil level, clogged nozzle, incorrect oil type | Refill oil, clean nozzle with rubbing alcohol (see Maintenance), ensure oil is suitable for nebulizing diffusers. |
| Diffuser not turning on | No power, loose connection | Check power adapter connection to unit and outlet. Try a different outlet. |
| App connectivity issues | Incorrect Wi-Fi password, weak signal, app glitch | Ensure correct Wi-Fi password. Move diffuser closer to router. Restart diffuser and app. Re-pair device in app. |
| Unit making unusual noises | Improper oil bottle insertion, internal issue | Ensure fragrance bottle is correctly and securely inserted. If noise persists, contact customer support. |
If the problem persists after attempting these solutions, please contact Scentiment customer support for further assistance.
8. Specifications
| Feature | Detail |
|---|---|
| Brand | Scentiment |
| Model Name | Scent Diffuser Pro 2 |
| Item Model Number | PRO_V2_Black |
| Color | Black |
| Material | Aluminum |
| Special Feature | Cold-air heatless, waterless diffusion technology |
| Power Source | Battery Powered (Note: Typically means it has a battery for internal clock/settings, but operates primarily via AC adapter) |
| Product Dimensions | 9.37"L x 2.83"W x 2.83"H |
| Coverage | 5000 sqft. |
| Shape | Cylindrical |
| Auto Shutoff | No |
| Item Weight | 5.13 pounds |
| Manufacturer | Scentiment |
| Date First Available | April 3, 2025 |
9. Warranty and Support
Scentiment stands behind the quality of its products. For specific warranty details, please refer to the warranty card included with your purchase or visit the official Scentiment website.
If you require technical support, have questions about your product, or need assistance with troubleshooting, please contact Scentiment customer service:
- Website: Scentiment Official Store
- Email: Refer to product packaging or website for contact email.
- Phone: Refer to product packaging or website for contact phone number.
Please have your model number (PRO_V2_Black) and purchase date ready when contacting support.



