Introduction
The Scentcares Sentiment Diffuser is a waterless essential oil diffuser designed to disperse fragrance using cold spray technology. It operates without water or heat, atomizing essential oils into fine nanoparticles to create a comfortable aromatic environment. This manual provides instructions for proper setup, operation, and maintenance of your diffuser.

Figure 1: Scentcares Sentiment Diffuser (Black model shown)
Safety Information
- Avoid direct skin contact with undiluted essential oils.
- Keep the diffuser and essential oils out of reach of children and pets.
- Ensure proper ventilation in the area where the diffuser is used.
- Do not use resin oils or thick oils (e.g., Sandalwood) as they may block the nozzle.
Package Contents
Upon opening your Scentcares Sentiment Diffuser package, you should find the following items:
- Scentcares Sentiment Diffuser (1 unit)
- USB Type-C Charging Cable (1 unit)
- User Manual (1 unit)
Setup
Follow these steps to prepare your Scentcares Sentiment Diffuser for use:
- Eject the Nozzle: Press the bottom button firmly with your finger to eject the nozzle assembly from the diffuser.
- Attach Essential Oil Bottle: Pull out the nozzle. Rotate your 10ml essential oil bottle onto the nozzle until securely attached.
- Insert Nozzle Assembly: Press the nozzle assembly, with the essential oil bottle attached, into the corresponding slot inside the diffuser. Ensure it is flush with the plane of the top cover.
- Positioning: Always keep the product standing upright to prevent essential oil leakage.

Figure 2: Essential Oil Bottle Installation Steps

Figure 3: Hands-on Guide for Nozzle and Oil Bottle Installation
Video 1: Demonstrates the setup process, including inserting the essential oil bottle and activating the diffuser.
Operating Instructions
The Scentcares Sentiment Diffuser features a top touch button with a blue LED indicator for easy operation. It offers three mist intensity levels and a timer function.

Figure 4: Diffuser Controls and Mist Levels Explained
Power On/Off
- Press the power button (labeled ON/OFF in Figure 4) on the top of the diffuser to turn it on or off.
Adjusting Mist Intensity and Timer
The diffuser offers three levels of atomization intensity, which also correspond to timer settings. Adjust these by pressing the atomization intensity cycle adjustment button (labeled in Figure 4).
- Level 1: Works for 3 minutes, atomizes for 60 seconds.
- Level 2: Works for 3 minutes, atomizes for 30 seconds.
- Level 3: Works for 3 minutes, atomizes for 15 seconds.
The diffuser also has a timed automatic shutdown function, which will automatically shut down after 2 hours of continuous operation.
Essential Oil Compatibility
The diffuser is designed to work with various essential oils. Choose oils based on your preference. It is not recommended to use resin oils or thick oils (such as Sandalwood) as they may block the nozzle.

Figure 5: Examples of Compatible Essential Oils
Maintenance
To ensure optimal performance and longevity of your Scentcares Sentiment Diffuser, regular maintenance is recommended.
- Cleaning the Nozzle: If you notice reduced mist output or a change in fragrance, the nozzle may be partially blocked. Gently wipe the nozzle with a cotton swab dampened with rubbing alcohol. Ensure the diffuser is off and unplugged before cleaning.
- Exterior Cleaning: Wipe the exterior of the diffuser with a soft, dry cloth. Do not use abrasive cleaners or immerse the unit in water.
- Storage: When not in use for an extended period, ensure the essential oil bottle is removed, and the diffuser is clean and dry. Store it in a cool, dry place.
Troubleshooting
If you encounter issues with your diffuser, please refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| No mist output | Essential oil bottle empty or improperly installed; Nozzle blocked; Battery low. | Check oil level and re-install bottle; Clean nozzle as per Maintenance section; Charge the diffuser. |
| Weak mist output | Nozzle partially blocked; Low battery; Incorrect mist intensity setting. | Clean nozzle; Charge the diffuser; Adjust mist intensity to a higher level. |
| Diffuser not turning on | Battery depleted; Power button not pressed correctly. | Charge the diffuser using the provided USB Type-C cable; Press and hold the power button for a few seconds. |
| Oil leakage | Diffuser not standing upright; Essential oil bottle not securely attached. | Ensure the diffuser is placed on a flat, stable surface; Re-attach the essential oil bottle firmly to the nozzle. |
Specifications
Detailed technical specifications for the Scentcares Sentiment Diffuser (Model P27-BL):
- Brand: Scentcares
- Model Name: Waterless Essential Oil Diffuser
- Model Number: P27-BL
- Color: Brack
- Material: PP+PET
- Product Dimensions: 2.68"L x 2.68"W x 4.25"H
- Item Weight: 10.5 ounces (0.3 Kilograms)
- Power Source: Battery Powered (Built-in Lithium Battery)
- Charging Port: DC 5V USB Type-C
- Capacity: 10 Milliliters (for essential oil bottle)
- Special Feature: Automatic Shut-Off (after 2 hours of continuous work)
- Light Source Type: LED (Blue indicator lights)
- Shape: Cylindrical
- Recommended Uses: Home, Office
- Coverage: Various room sizes

Figure 6: Diffuser Dimensions and Key Features
Warranty and Support
Your Scentcares Sentiment Diffuser comes with a one-year warranty from the date of purchase. This warranty covers manufacturing defects under normal use.
For warranty claims, technical support, or any inquiries regarding your product, please refer to the contact information provided on the product packaging or the official Scentcares website.





